Home / 28,706.29-43,042.87-11,155.61

Finding the Fourth Proportional to 28,706.29, 43,042.87 and 11,155.61

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Solution

The fourth proportional to 28,706.29, 43,042.87 and 11,155.61 is: 16,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.29 : 43,042.87 = 11,155.61 : x
  2. Step 2: Convert to fraction form
    28,706.29/43,042.87 = 11,155.61/x
  3. Step 3: Cross multiply
    28,706.29x = 43,042.87 × 11,155.61
  4. Step 4: Simplify right side
    28,706.29x = 480,169,471.00
  5. Step 5: Solve for x
    x = 480,169,471.00/28,706.29
  6. Step 6: Final answer
    x = 16,726.98

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1.5x scale

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.