Home / 28,113.97-42,166.56-9,393.86

Finding the Fourth Proportional to 28,113.97, 42,166.56 and 9,393.86

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Solution

The fourth proportional to 28,113.97, 42,166.56 and 9,393.86 is: 14,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.97 : 42,166.56 = 9,393.86 : x
  2. Step 2: Convert to fraction form
    28,113.97/42,166.56 = 9,393.86/x
  3. Step 3: Cross multiply
    28,113.97x = 42,166.56 × 9,393.86
  4. Step 4: Simplify right side
    28,113.97x = 396,106,761.32
  5. Step 5: Solve for x
    x = 396,106,761.32/28,113.97
  6. Step 6: Final answer
    x = 14,089.32

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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.