Home / 31,938.72-47,864.40-16,323.60

Finding the Fourth Proportional to 31,938.72, 47,864.40 and 16,323.60

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Solution

The fourth proportional to 31,938.72, 47,864.40 and 16,323.60 is: 24,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.72 : 47,864.40 = 16,323.60 : x
  2. Step 2: Convert to fraction form
    31,938.72/47,864.40 = 16,323.60/x
  3. Step 3: Cross multiply
    31,938.72x = 47,864.40 × 16,323.60
  4. Step 4: Simplify right side
    31,938.72x = 781,319,319.84
  5. Step 5: Solve for x
    x = 781,319,319.84/31,938.72
  6. Step 6: Final answer
    x = 24,463.08

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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.