Home / 18,655.62-25,746.57-13,931.70

Finding the Fourth Proportional to 18,655.62, 25,746.57 and 13,931.70

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Solution

The fourth proportional to 18,655.62, 25,746.57 and 13,931.70 is: 19,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.62 : 25,746.57 = 13,931.70 : x
  2. Step 2: Convert to fraction form
    18,655.62/25,746.57 = 13,931.70/x
  3. Step 3: Cross multiply
    18,655.62x = 25,746.57 × 13,931.70
  4. Step 4: Simplify right side
    18,655.62x = 358,693,489.27
  5. Step 5: Solve for x
    x = 358,693,489.27/18,655.62
  6. Step 6: Final answer
    x = 19,227.10

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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.