Home / 28,718.67-43,061.13-11,167.86

Finding the Fourth Proportional to 28,718.67, 43,061.13 and 11,167.86

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Solution

The fourth proportional to 28,718.67, 43,061.13 and 11,167.86 is: 16,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.67 : 43,061.13 = 11,167.86 : x
  2. Step 2: Convert to fraction form
    28,718.67/43,061.13 = 11,167.86/x
  3. Step 3: Cross multiply
    28,718.67x = 43,061.13 × 11,167.86
  4. Step 4: Simplify right side
    28,718.67x = 480,900,671.28
  5. Step 5: Solve for x
    x = 480,900,671.28/28,718.67
  6. Step 6: Final answer
    x = 16,745.23

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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.