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Finding the Fourth Proportional to 25,080.80, 37,621.20 and 18,082.40

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Solution

The fourth proportional to 25,080.80, 37,621.20 and 18,082.40 is: 27,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,080.80 : 37,621.20 = 18,082.40 : x
  2. Step 2: Convert to fraction form
    25,080.80/37,621.20 = 18,082.40/x
  3. Step 3: Cross multiply
    25,080.80x = 37,621.20 × 18,082.40
  4. Step 4: Simplify right side
    25,080.80x = 680,281,586.88
  5. Step 5: Solve for x
    x = 680,281,586.88/25,080.80
  6. Step 6: Final answer
    x = 27,123.60

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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.