Home / 20,625.42-28,463.10-11,193.98

Finding the Fourth Proportional to 20,625.42, 28,463.10 and 11,193.98

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Solution

The fourth proportional to 20,625.42, 28,463.10 and 11,193.98 is: 15,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.42 : 28,463.10 = 11,193.98 : x
  2. Step 2: Convert to fraction form
    20,625.42/28,463.10 = 11,193.98/x
  3. Step 3: Cross multiply
    20,625.42x = 28,463.10 × 11,193.98
  4. Step 4: Simplify right side
    20,625.42x = 318,615,316.17
  5. Step 5: Solve for x
    x = 318,615,316.17/20,625.42
  6. Step 6: Final answer
    x = 15,447.70

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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.