Home / 25,018.38-34,524.12-13,688.10

Finding the Fourth Proportional to 25,018.38, 34,524.12 and 13,688.10

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Solution

The fourth proportional to 25,018.38, 34,524.12 and 13,688.10 is: 18,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,018.38 : 34,524.12 = 13,688.10 : x
  2. Step 2: Convert to fraction form
    25,018.38/34,524.12 = 13,688.10/x
  3. Step 3: Cross multiply
    25,018.38x = 34,524.12 × 13,688.10
  4. Step 4: Simplify right side
    25,018.38x = 472,569,606.97
  5. Step 5: Solve for x
    x = 472,569,606.97/25,018.38
  6. Step 6: Final answer
    x = 18,888.90

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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.