Home / 57,287.70-85,931.55-15,738.90

Finding the Fourth Proportional to 57,287.70, 85,931.55 and 15,738.90

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Solution

The fourth proportional to 57,287.70, 85,931.55 and 15,738.90 is: 23,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,287.70 : 85,931.55 = 15,738.90 : x
  2. Step 2: Convert to fraction form
    57,287.70/85,931.55 = 15,738.90/x
  3. Step 3: Cross multiply
    57,287.70x = 85,931.55 × 15,738.90
  4. Step 4: Simplify right side
    57,287.70x = 1,352,468,072.30
  5. Step 5: Solve for x
    x = 1,352,468,072.30/57,287.70
  6. Step 6: Final answer
    x = 23,608.35

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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.