Home / 22,102.42-30,531.18-20,527.78

Finding the Fourth Proportional to 22,102.42, 30,531.18 and 20,527.78

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Solution

The fourth proportional to 22,102.42, 30,531.18 and 20,527.78 is: 28,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,102.42 : 30,531.18 = 20,527.78 : x
  2. Step 2: Convert to fraction form
    22,102.42/30,531.18 = 20,527.78/x
  3. Step 3: Cross multiply
    22,102.42x = 30,531.18 × 20,527.78
  4. Step 4: Simplify right side
    22,102.42x = 626,737,346.18
  5. Step 5: Solve for x
    x = 626,737,346.18/22,102.42
  6. Step 6: Final answer
    x = 28,356.05

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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.