Home / 38,445.20-57,662.40-12,152.60

Finding the Fourth Proportional to 38,445.20, 57,662.40 and 12,152.60

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Solution

The fourth proportional to 38,445.20, 57,662.40 and 12,152.60 is: 18,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.20 : 57,662.40 = 12,152.60 : x
  2. Step 2: Convert to fraction form
    38,445.20/57,662.40 = 12,152.60/x
  3. Step 3: Cross multiply
    38,445.20x = 57,662.40 × 12,152.60
  4. Step 4: Simplify right side
    38,445.20x = 700,748,082.24
  5. Step 5: Solve for x
    x = 700,748,082.24/38,445.20
  6. Step 6: Final answer
    x = 18,227.19

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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.