Home / 22,569.20-31,135.56-13,617.08

Finding the Fourth Proportional to 22,569.20, 31,135.56 and 13,617.08

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Solution

The fourth proportional to 22,569.20, 31,135.56 and 13,617.08 is: 18,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569.20 : 31,135.56 = 13,617.08 : x
  2. Step 2: Convert to fraction form
    22,569.20/31,135.56 = 13,617.08/x
  3. Step 3: Cross multiply
    22,569.20x = 31,135.56 × 13,617.08
  4. Step 4: Simplify right side
    22,569.20x = 423,975,411.36
  5. Step 5: Solve for x
    x = 423,975,411.36/22,569.20
  6. Step 6: Final answer
    x = 18,785.58

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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.