Home / 21,217.55-31,832.24-6,426.59

Finding the Fourth Proportional to 21,217.55, 31,832.24 and 6,426.59

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Solution

The fourth proportional to 21,217.55, 31,832.24 and 6,426.59 is: 9,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.55 : 31,832.24 = 6,426.59 : x
  2. Step 2: Convert to fraction form
    21,217.55/31,832.24 = 6,426.59/x
  3. Step 3: Cross multiply
    21,217.55x = 31,832.24 × 6,426.59
  4. Step 4: Simplify right side
    21,217.55x = 204,572,779.17
  5. Step 5: Solve for x
    x = 204,572,779.17/21,217.55
  6. Step 6: Final answer
    x = 9,641.68

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1.5x scale

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.