Home / 31,006.44-42,787.36-16,859.28

Finding the Fourth Proportional to 31,006.44, 42,787.36 and 16,859.28

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Solution

The fourth proportional to 31,006.44, 42,787.36 and 16,859.28 is: 23,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,006.44 : 42,787.36 = 16,859.28 : x
  2. Step 2: Convert to fraction form
    31,006.44/42,787.36 = 16,859.28/x
  3. Step 3: Cross multiply
    31,006.44x = 42,787.36 × 16,859.28
  4. Step 4: Simplify right side
    31,006.44x = 721,364,040.55
  5. Step 5: Solve for x
    x = 721,364,040.55/31,006.44
  6. Step 6: Final answer
    x = 23,264.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.