Home / 28,153.17-38,850.84-15,577.92

Finding the Fourth Proportional to 28,153.17, 38,850.84 and 15,577.92

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Solution

The fourth proportional to 28,153.17, 38,850.84 and 15,577.92 is: 21,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.17 : 38,850.84 = 15,577.92 : x
  2. Step 2: Convert to fraction form
    28,153.17/38,850.84 = 15,577.92/x
  3. Step 3: Cross multiply
    28,153.17x = 38,850.84 × 15,577.92
  4. Step 4: Simplify right side
    28,153.17x = 605,215,277.45
  5. Step 5: Solve for x
    x = 605,215,277.45/28,153.17
  6. Step 6: Final answer
    x = 21,497.23

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Half scale
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Double scale
Find fourth proportional to 28,154.17, 38,852.22 and 15,578.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.