Home / 63,018-94,517.28-20,916.36

Finding the Fourth Proportional to 63,018, 94,517.28 and 20,916.36

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Solution

The fourth proportional to 63,018, 94,517.28 and 20,916.36 is: 31,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018 : 94,517.28 = 20,916.36 : x
  2. Step 2: Convert to fraction form
    63,018/94,517.28 = 20,916.36/x
  3. Step 3: Cross multiply
    63,018x = 94,517.28 × 20,916.36
  4. Step 4: Simplify right side
    63,018x = 1,976,957,454.70
  5. Step 5: Solve for x
    x = 1,976,957,454.70/63,018
  6. Step 6: Final answer
    x = 31,371.31

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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.