Home / 28,870.84-43,305.18-9,151.48

Finding the Fourth Proportional to 28,870.84, 43,305.18 and 9,151.48

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Solution

The fourth proportional to 28,870.84, 43,305.18 and 9,151.48 is: 13,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.84 : 43,305.18 = 9,151.48 : x
  2. Step 2: Convert to fraction form
    28,870.84/43,305.18 = 9,151.48/x
  3. Step 3: Cross multiply
    28,870.84x = 43,305.18 × 9,151.48
  4. Step 4: Simplify right side
    28,870.84x = 396,306,488.67
  5. Step 5: Solve for x
    x = 396,306,488.67/28,870.84
  6. Step 6: Final answer
    x = 13,726.88

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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.