Home / 20,124.55-30,158.02-13,961.35

Finding the Fourth Proportional to 20,124.55, 30,158.02 and 13,961.35

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Solution

The fourth proportional to 20,124.55, 30,158.02 and 13,961.35 is: 20,922.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.55 : 30,158.02 = 13,961.35 : x
  2. Step 2: Convert to fraction form
    20,124.55/30,158.02 = 13,961.35/x
  3. Step 3: Cross multiply
    20,124.55x = 30,158.02 × 13,961.35
  4. Step 4: Simplify right side
    20,124.55x = 421,046,672.53
  5. Step 5: Solve for x
    x = 421,046,672.53/20,124.55
  6. Step 6: Final answer
    x = 20,922.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.