Home / 38,285.40-57,428.10-35,520.60

Finding the Fourth Proportional to 38,285.40, 57,428.10 and 35,520.60

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Solution

The fourth proportional to 38,285.40, 57,428.10 and 35,520.60 is: 53,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,285.40 : 57,428.10 = 35,520.60 : x
  2. Step 2: Convert to fraction form
    38,285.40/57,428.10 = 35,520.60/x
  3. Step 3: Cross multiply
    38,285.40x = 57,428.10 × 35,520.60
  4. Step 4: Simplify right side
    38,285.40x = 2,039,880,568.86
  5. Step 5: Solve for x
    x = 2,039,880,568.86/38,285.40
  6. Step 6: Final answer
    x = 53,280.90

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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.