Home / 20,534.30-28,342.50-11,586.97

Finding the Fourth Proportional to 20,534.30, 28,342.50 and 11,586.97

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Solution

The fourth proportional to 20,534.30, 28,342.50 and 11,586.97 is: 15,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.30 : 28,342.50 = 11,586.97 : x
  2. Step 2: Convert to fraction form
    20,534.30/28,342.50 = 11,586.97/x
  3. Step 3: Cross multiply
    20,534.30x = 28,342.50 × 11,586.97
  4. Step 4: Simplify right side
    20,534.30x = 328,403,526.55
  5. Step 5: Solve for x
    x = 328,403,526.55/20,534.30
  6. Step 6: Final answer
    x = 15,992.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.