Home / 38,274.24-57,359.52-19,819.20

Finding the Fourth Proportional to 38,274.24, 57,359.52 and 19,819.20

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Solution

The fourth proportional to 38,274.24, 57,359.52 and 19,819.20 is: 29,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,274.24 : 57,359.52 = 19,819.20 : x
  2. Step 2: Convert to fraction form
    38,274.24/57,359.52 = 19,819.20/x
  3. Step 3: Cross multiply
    38,274.24x = 57,359.52 × 19,819.20
  4. Step 4: Simplify right side
    38,274.24x = 1,136,819,798.78
  5. Step 5: Solve for x
    x = 1,136,819,798.78/38,274.24
  6. Step 6: Final answer
    x = 29,701.96

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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.