Home / 25,591.55-38,312.60-20,670.80

Finding the Fourth Proportional to 25,591.55, 38,312.60 and 20,670.80

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Solution

The fourth proportional to 25,591.55, 38,312.60 and 20,670.80 is: 30,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.55 : 38,312.60 = 20,670.80 : x
  2. Step 2: Convert to fraction form
    25,591.55/38,312.60 = 20,670.80/x
  3. Step 3: Cross multiply
    25,591.55x = 38,312.60 × 20,670.80
  4. Step 4: Simplify right side
    25,591.55x = 791,951,797.16
  5. Step 5: Solve for x
    x = 791,951,797.16/25,591.55
  6. Step 6: Final answer
    x = 30,945.84

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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.