Home / 28,193.66-38,908.51-15,617.60

Finding the Fourth Proportional to 28,193.66, 38,908.51 and 15,617.60

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Solution

The fourth proportional to 28,193.66, 38,908.51 and 15,617.60 is: 21,552.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.66 : 38,908.51 = 15,617.60 : x
  2. Step 2: Convert to fraction form
    28,193.66/38,908.51 = 15,617.60/x
  3. Step 3: Cross multiply
    28,193.66x = 38,908.51 × 15,617.60
  4. Step 4: Simplify right side
    28,193.66x = 607,657,312.19
  5. Step 5: Solve for x
    x = 607,657,312.19/28,193.66
  6. Step 6: Final answer
    x = 21,552.98

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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.