Home / 21,242.93-31,864.52-6,451.92

Finding the Fourth Proportional to 21,242.93, 31,864.52 and 6,451.92

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Solution

The fourth proportional to 21,242.93, 31,864.52 and 6,451.92 is: 9,677.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.93 : 31,864.52 = 6,451.92 : x
  2. Step 2: Convert to fraction form
    21,242.93/31,864.52 = 6,451.92/x
  3. Step 3: Cross multiply
    21,242.93x = 31,864.52 × 6,451.92
  4. Step 4: Simplify right side
    21,242.93x = 205,587,350.01
  5. Step 5: Solve for x
    x = 205,587,350.01/21,242.93
  6. Step 6: Final answer
    x = 9,677.92

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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.