Home / 37,989.38-57,000.76-20,215.84

Finding the Fourth Proportional to 37,989.38, 57,000.76 and 20,215.84

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Solution

The fourth proportional to 37,989.38, 57,000.76 and 20,215.84 is: 30,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.38 : 57,000.76 = 20,215.84 : x
  2. Step 2: Convert to fraction form
    37,989.38/57,000.76 = 20,215.84/x
  3. Step 3: Cross multiply
    37,989.38x = 57,000.76 × 20,215.84
  4. Step 4: Simplify right side
    37,989.38x = 1,152,318,244.04
  5. Step 5: Solve for x
    x = 1,152,318,244.04/37,989.38
  6. Step 6: Final answer
    x = 30,332.64

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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.