Home / 31,836.05-47,755.65-12,116.13

Finding the Fourth Proportional to 31,836.05, 47,755.65 and 12,116.13

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Solution

The fourth proportional to 31,836.05, 47,755.65 and 12,116.13 is: 18,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.05 : 47,755.65 = 12,116.13 : x
  2. Step 2: Convert to fraction form
    31,836.05/47,755.65 = 12,116.13/x
  3. Step 3: Cross multiply
    31,836.05x = 47,755.65 × 12,116.13
  4. Step 4: Simplify right side
    31,836.05x = 578,613,663.63
  5. Step 5: Solve for x
    x = 578,613,663.63/31,836.05
  6. Step 6: Final answer
    x = 18,174.80

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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.