Home / 19,957.32-29,935.98-5,165.28

Finding the Fourth Proportional to 19,957.32, 29,935.98 and 5,165.28

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Solution

The fourth proportional to 19,957.32, 29,935.98 and 5,165.28 is: 7,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.32 : 29,935.98 = 5,165.28 : x
  2. Step 2: Convert to fraction form
    19,957.32/29,935.98 = 5,165.28/x
  3. Step 3: Cross multiply
    19,957.32x = 29,935.98 × 5,165.28
  4. Step 4: Simplify right side
    19,957.32x = 154,627,718.77
  5. Step 5: Solve for x
    x = 154,627,718.77/19,957.32
  6. Step 6: Final answer
    x = 7,747.92

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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.