Home / 38,271.60-57,358.80-20,727

Finding the Fourth Proportional to 38,271.60, 57,358.80 and 20,727

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Solution

The fourth proportional to 38,271.60, 57,358.80 and 20,727 is: 31,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,271.60 : 57,358.80 = 20,727 : x
  2. Step 2: Convert to fraction form
    38,271.60/57,358.80 = 20,727/x
  3. Step 3: Cross multiply
    38,271.60x = 57,358.80 × 20,727
  4. Step 4: Simplify right side
    38,271.60x = 1,188,875,847.60
  5. Step 5: Solve for x
    x = 1,188,875,847.60/38,271.60
  6. Step 6: Final answer
    x = 31,064.18

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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.