Home / 38,479.80-57,615.44-19,972.92

Finding the Fourth Proportional to 38,479.80, 57,615.44 and 19,972.92

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Solution

The fourth proportional to 38,479.80, 57,615.44 and 19,972.92 is: 29,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479.80 : 57,615.44 = 19,972.92 : x
  2. Step 2: Convert to fraction form
    38,479.80/57,615.44 = 19,972.92/x
  3. Step 3: Cross multiply
    38,479.80x = 57,615.44 × 19,972.92
  4. Step 4: Simplify right side
    38,479.80x = 1,150,748,474.02
  5. Step 5: Solve for x
    x = 1,150,748,474.02/38,479.80
  6. Step 6: Final answer
    x = 29,905.26

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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.