Home / 31,909.73-47,864.60-14,359.05

Finding the Fourth Proportional to 31,909.73, 47,864.60 and 14,359.05

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Solution

The fourth proportional to 31,909.73, 47,864.60 and 14,359.05 is: 21,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.73 : 47,864.60 = 14,359.05 : x
  2. Step 2: Convert to fraction form
    31,909.73/47,864.60 = 14,359.05/x
  3. Step 3: Cross multiply
    31,909.73x = 47,864.60 × 14,359.05
  4. Step 4: Simplify right side
    31,909.73x = 687,290,112.83
  5. Step 5: Solve for x
    x = 687,290,112.83/31,909.73
  6. Step 6: Final answer
    x = 21,538.58

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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.