Home / 20,522.23-28,320.15-11,569.65

Finding the Fourth Proportional to 20,522.23, 28,320.15 and 11,569.65

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Solution

The fourth proportional to 20,522.23, 28,320.15 and 11,569.65 is: 15,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.23 : 28,320.15 = 11,569.65 : x
  2. Step 2: Convert to fraction form
    20,522.23/28,320.15 = 11,569.65/x
  3. Step 3: Cross multiply
    20,522.23x = 28,320.15 × 11,569.65
  4. Step 4: Simplify right side
    20,522.23x = 327,654,254.85
  5. Step 5: Solve for x
    x = 327,654,254.85/20,522.23
  6. Step 6: Final answer
    x = 15,965.82

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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.