Home / 31,677.06-47,531.38-14,142.18

Finding the Fourth Proportional to 31,677.06, 47,531.38 and 14,142.18

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Solution

The fourth proportional to 31,677.06, 47,531.38 and 14,142.18 is: 21,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,677.06 : 47,531.38 = 14,142.18 : x
  2. Step 2: Convert to fraction form
    31,677.06/47,531.38 = 14,142.18/x
  3. Step 3: Cross multiply
    31,677.06x = 47,531.38 × 14,142.18
  4. Step 4: Simplify right side
    31,677.06x = 672,197,331.61
  5. Step 5: Solve for x
    x = 672,197,331.61/31,677.06
  6. Step 6: Final answer
    x = 21,220.32

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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.