Home / 38,520.40-57,777.96-10,818.40

Finding the Fourth Proportional to 38,520.40, 57,777.96 and 10,818.40

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Solution

The fourth proportional to 38,520.40, 57,777.96 and 10,818.40 is: 16,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.40 : 57,777.96 = 10,818.40 : x
  2. Step 2: Convert to fraction form
    38,520.40/57,777.96 = 10,818.40/x
  3. Step 3: Cross multiply
    38,520.40x = 57,777.96 × 10,818.40
  4. Step 4: Simplify right side
    38,520.40x = 625,065,082.46
  5. Step 5: Solve for x
    x = 625,065,082.46/38,520.40
  6. Step 6: Final answer
    x = 16,226.86

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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.