Home / 20,123.02-30,140.52-14,261.86

Finding the Fourth Proportional to 20,123.02, 30,140.52 and 14,261.86

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Solution

The fourth proportional to 20,123.02, 30,140.52 and 14,261.86 is: 21,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.02 : 30,140.52 = 14,261.86 : x
  2. Step 2: Convert to fraction form
    20,123.02/30,140.52 = 14,261.86/x
  3. Step 3: Cross multiply
    20,123.02x = 30,140.52 × 14,261.86
  4. Step 4: Simplify right side
    20,123.02x = 429,859,876.57
  5. Step 5: Solve for x
    x = 429,859,876.57/20,123.02
  6. Step 6: Final answer
    x = 21,361.60

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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.