Home / 21,043.86-31,565.13-6,252.72

Finding the Fourth Proportional to 21,043.86, 31,565.13 and 6,252.72

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Solution

The fourth proportional to 21,043.86, 31,565.13 and 6,252.72 is: 9,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.86 : 31,565.13 = 6,252.72 : x
  2. Step 2: Convert to fraction form
    21,043.86/31,565.13 = 6,252.72/x
  3. Step 3: Cross multiply
    21,043.86x = 31,565.13 × 6,252.72
  4. Step 4: Simplify right side
    21,043.86x = 197,367,919.65
  5. Step 5: Solve for x
    x = 197,367,919.65/21,043.86
  6. Step 6: Final answer
    x = 9,378.88

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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.