Home / 28,870.49-43,306.95-9,148.61

Finding the Fourth Proportional to 28,870.49, 43,306.95 and 9,148.61

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Solution

The fourth proportional to 28,870.49, 43,306.95 and 9,148.61 is: 13,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.49 : 43,306.95 = 9,148.61 : x
  2. Step 2: Convert to fraction form
    28,870.49/43,306.95 = 9,148.61/x
  3. Step 3: Cross multiply
    28,870.49x = 43,306.95 × 9,148.61
  4. Step 4: Simplify right side
    28,870.49x = 396,198,395.84
  5. Step 5: Solve for x
    x = 396,198,395.84/28,870.49
  6. Step 6: Final answer
    x = 13,723.30

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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.