Home / 20,471.55-28,248.44-11,522.13

Finding the Fourth Proportional to 20,471.55, 28,248.44 and 11,522.13

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Solution

The fourth proportional to 20,471.55, 28,248.44 and 11,522.13 is: 15,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.55 : 28,248.44 = 11,522.13 : x
  2. Step 2: Convert to fraction form
    20,471.55/28,248.44 = 11,522.13/x
  3. Step 3: Cross multiply
    20,471.55x = 28,248.44 × 11,522.13
  4. Step 4: Simplify right side
    20,471.55x = 325,482,197.98
  5. Step 5: Solve for x
    x = 325,482,197.98/20,471.55
  6. Step 6: Final answer
    x = 15,899.25

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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.