Home / 19,822.16-29,737.04-7,976.88

Finding the Fourth Proportional to 19,822.16, 29,737.04 and 7,976.88

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Solution

The fourth proportional to 19,822.16, 29,737.04 and 7,976.88 is: 11,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.16 : 29,737.04 = 7,976.88 : x
  2. Step 2: Convert to fraction form
    19,822.16/29,737.04 = 7,976.88/x
  3. Step 3: Cross multiply
    19,822.16x = 29,737.04 × 7,976.88
  4. Step 4: Simplify right side
    19,822.16x = 237,208,799.64
  5. Step 5: Solve for x
    x = 237,208,799.64/19,822.16
  6. Step 6: Final answer
    x = 11,966.85

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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.