Home / 17,385.91-23,988.54-11,731.15

Finding the Fourth Proportional to 17,385.91, 23,988.54 and 11,731.15

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Solution

The fourth proportional to 17,385.91, 23,988.54 and 11,731.15 is: 16,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.91 : 23,988.54 = 11,731.15 : x
  2. Step 2: Convert to fraction form
    17,385.91/23,988.54 = 11,731.15/x
  3. Step 3: Cross multiply
    17,385.91x = 23,988.54 × 11,731.15
  4. Step 4: Simplify right side
    17,385.91x = 281,413,161.02
  5. Step 5: Solve for x
    x = 281,413,161.02/17,385.91
  6. Step 6: Final answer
    x = 16,186.28

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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.