Home / 28,248.64-42,342.72-17,863.36

Finding the Fourth Proportional to 28,248.64, 42,342.72 and 17,863.36

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Solution

The fourth proportional to 28,248.64, 42,342.72 and 17,863.36 is: 26,775.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.64 : 42,342.72 = 17,863.36 : x
  2. Step 2: Convert to fraction form
    28,248.64/42,342.72 = 17,863.36/x
  3. Step 3: Cross multiply
    28,248.64x = 42,342.72 × 17,863.36
  4. Step 4: Simplify right side
    28,248.64x = 756,383,250.74
  5. Step 5: Solve for x
    x = 756,383,250.74/28,248.64
  6. Step 6: Final answer
    x = 26,775.92

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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.