Home / 28,149.55-38,846.07-15,574.39

Finding the Fourth Proportional to 28,149.55, 38,846.07 and 15,574.39

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Solution

The fourth proportional to 28,149.55, 38,846.07 and 15,574.39 is: 21,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.55 : 38,846.07 = 15,574.39 : x
  2. Step 2: Convert to fraction form
    28,149.55/38,846.07 = 15,574.39/x
  3. Step 3: Cross multiply
    28,149.55x = 38,846.07 × 15,574.39
  4. Step 4: Simplify right side
    28,149.55x = 605,003,649.92
  5. Step 5: Solve for x
    x = 605,003,649.92/28,149.55
  6. Step 6: Final answer
    x = 21,492.48

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Half scale
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Double scale
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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.