Home / 38,748.20-58,122.30-30,000.20

Finding the Fourth Proportional to 38,748.20, 58,122.30 and 30,000.20

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Solution

The fourth proportional to 38,748.20, 58,122.30 and 30,000.20 is: 45,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,748.20 : 58,122.30 = 30,000.20 : x
  2. Step 2: Convert to fraction form
    38,748.20/58,122.30 = 30,000.20/x
  3. Step 3: Cross multiply
    38,748.20x = 58,122.30 × 30,000.20
  4. Step 4: Simplify right side
    38,748.20x = 1,743,680,624.46
  5. Step 5: Solve for x
    x = 1,743,680,624.46/38,748.20
  6. Step 6: Final answer
    x = 45,000.30

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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.