Home / 38,520.20-57,780.30-26,710.40

Finding the Fourth Proportional to 38,520.20, 57,780.30 and 26,710.40

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Solution

The fourth proportional to 38,520.20, 57,780.30 and 26,710.40 is: 40,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.20 : 57,780.30 = 26,710.40 : x
  2. Step 2: Convert to fraction form
    38,520.20/57,780.30 = 26,710.40/x
  3. Step 3: Cross multiply
    38,520.20x = 57,780.30 × 26,710.40
  4. Step 4: Simplify right side
    38,520.20x = 1,543,334,925.12
  5. Step 5: Solve for x
    x = 1,543,334,925.12/38,520.20
  6. Step 6: Final answer
    x = 40,065.60

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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.