Home / 22,463.57-31,000.10-13,509.38

Finding the Fourth Proportional to 22,463.57, 31,000.10 and 13,509.38

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Solution

The fourth proportional to 22,463.57, 31,000.10 and 13,509.38 is: 18,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,463.57 : 31,000.10 = 13,509.38 : x
  2. Step 2: Convert to fraction form
    22,463.57/31,000.10 = 13,509.38/x
  3. Step 3: Cross multiply
    22,463.57x = 31,000.10 × 13,509.38
  4. Step 4: Simplify right side
    22,463.57x = 418,791,908.39
  5. Step 5: Solve for x
    x = 418,791,908.39/22,463.57
  6. Step 6: Final answer
    x = 18,643.16

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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.