Home / 38,439.03-57,624.36-20,679.22

Finding the Fourth Proportional to 38,439.03, 57,624.36 and 20,679.22

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Solution

The fourth proportional to 38,439.03, 57,624.36 and 20,679.22 is: 31,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,439.03 : 57,624.36 = 20,679.22 : x
  2. Step 2: Convert to fraction form
    38,439.03/57,624.36 = 20,679.22/x
  3. Step 3: Cross multiply
    38,439.03x = 57,624.36 × 20,679.22
  4. Step 4: Simplify right side
    38,439.03x = 1,191,626,817.80
  5. Step 5: Solve for x
    x = 1,191,626,817.80/38,439.03
  6. Step 6: Final answer
    x = 31,000.44

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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.