Home / 31,980.20-47,973.90-9,793.40

Finding the Fourth Proportional to 31,980.20, 47,973.90 and 9,793.40

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Solution

The fourth proportional to 31,980.20, 47,973.90 and 9,793.40 is: 14,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.20 : 47,973.90 = 9,793.40 : x
  2. Step 2: Convert to fraction form
    31,980.20/47,973.90 = 9,793.40/x
  3. Step 3: Cross multiply
    31,980.20x = 47,973.90 × 9,793.40
  4. Step 4: Simplify right side
    31,980.20x = 469,827,592.26
  5. Step 5: Solve for x
    x = 469,827,592.26/31,980.20
  6. Step 6: Final answer
    x = 14,691.20

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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.