Home / 19,350.80-29,023.16-5,311.88

Finding the Fourth Proportional to 19,350.80, 29,023.16 and 5,311.88

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Solution

The fourth proportional to 19,350.80, 29,023.16 and 5,311.88 is: 7,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.80 : 29,023.16 = 5,311.88 : x
  2. Step 2: Convert to fraction form
    19,350.80/29,023.16 = 5,311.88/x
  3. Step 3: Cross multiply
    19,350.80x = 29,023.16 × 5,311.88
  4. Step 4: Simplify right side
    19,350.80x = 154,167,510.18
  5. Step 5: Solve for x
    x = 154,167,510.18/19,350.80
  6. Step 6: Final answer
    x = 7,966.98

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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.