Home / 21,426.52-32,140.06-7,565.80

Finding the Fourth Proportional to 21,426.52, 32,140.06 and 7,565.80

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Solution

The fourth proportional to 21,426.52, 32,140.06 and 7,565.80 is: 11,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.52 : 32,140.06 = 7,565.80 : x
  2. Step 2: Convert to fraction form
    21,426.52/32,140.06 = 7,565.80/x
  3. Step 3: Cross multiply
    21,426.52x = 32,140.06 × 7,565.80
  4. Step 4: Simplify right side
    21,426.52x = 243,165,265.95
  5. Step 5: Solve for x
    x = 243,165,265.95/21,426.52
  6. Step 6: Final answer
    x = 11,348.80

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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.