Home / 20,958.02-31,445.92-9,864.47

Finding the Fourth Proportional to 20,958.02, 31,445.92 and 9,864.47

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Solution

The fourth proportional to 20,958.02, 31,445.92 and 9,864.47 is: 14,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.02 : 31,445.92 = 9,864.47 : x
  2. Step 2: Convert to fraction form
    20,958.02/31,445.92 = 9,864.47/x
  3. Step 3: Cross multiply
    20,958.02x = 31,445.92 × 9,864.47
  4. Step 4: Simplify right side
    20,958.02x = 310,197,248.52
  5. Step 5: Solve for x
    x = 310,197,248.52/20,958.02
  6. Step 6: Final answer
    x = 14,800.88

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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.