Home / 31,731.42-47,581.53-13,006.38

Finding the Fourth Proportional to 31,731.42, 47,581.53 and 13,006.38

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Solution

The fourth proportional to 31,731.42, 47,581.53 and 13,006.38 is: 19,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.42 : 47,581.53 = 13,006.38 : x
  2. Step 2: Convert to fraction form
    31,731.42/47,581.53 = 13,006.38/x
  3. Step 3: Cross multiply
    31,731.42x = 47,581.53 × 13,006.38
  4. Step 4: Simplify right side
    31,731.42x = 618,863,460.16
  5. Step 5: Solve for x
    x = 618,863,460.16/31,731.42
  6. Step 6: Final answer
    x = 19,503.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.