Home / 22,581.92-31,164.21-13,629.30

Finding the Fourth Proportional to 22,581.92, 31,164.21 and 13,629.30

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Solution

The fourth proportional to 22,581.92, 31,164.21 and 13,629.30 is: 18,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.92 : 31,164.21 = 13,629.30 : x
  2. Step 2: Convert to fraction form
    22,581.92/31,164.21 = 13,629.30/x
  3. Step 3: Cross multiply
    22,581.92x = 31,164.21 × 13,629.30
  4. Step 4: Simplify right side
    22,581.92x = 424,746,250.49
  5. Step 5: Solve for x
    x = 424,746,250.49/22,581.92
  6. Step 6: Final answer
    x = 18,809.13

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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.