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Finding the Fourth Proportional to 31,487, 43,452.12 and 17,341.16

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Solution

The fourth proportional to 31,487, 43,452.12 and 17,341.16 is: 23,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487 : 43,452.12 = 17,341.16 : x
  2. Step 2: Convert to fraction form
    31,487/43,452.12 = 17,341.16/x
  3. Step 3: Cross multiply
    31,487x = 43,452.12 × 17,341.16
  4. Step 4: Simplify right side
    31,487x = 753,510,165.26
  5. Step 5: Solve for x
    x = 753,510,165.26/31,487
  6. Step 6: Final answer
    x = 23,930.83

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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.