Home / 20,512.61-28,306.99-11,559.93

Finding the Fourth Proportional to 20,512.61, 28,306.99 and 11,559.93

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Solution

The fourth proportional to 20,512.61, 28,306.99 and 11,559.93 is: 15,952.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.61 : 28,306.99 = 11,559.93 : x
  2. Step 2: Convert to fraction form
    20,512.61/28,306.99 = 11,559.93/x
  3. Step 3: Cross multiply
    20,512.61x = 28,306.99 × 11,559.93
  4. Step 4: Simplify right side
    20,512.61x = 327,226,822.91
  5. Step 5: Solve for x
    x = 327,226,822.91/20,512.61
  6. Step 6: Final answer
    x = 15,952.47

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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.