Home / 28,488.78-39,311.87-16,551.95

Finding the Fourth Proportional to 28,488.78, 39,311.87 and 16,551.95

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Solution

The fourth proportional to 28,488.78, 39,311.87 and 16,551.95 is: 22,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.78 : 39,311.87 = 16,551.95 : x
  2. Step 2: Convert to fraction form
    28,488.78/39,311.87 = 16,551.95/x
  3. Step 3: Cross multiply
    28,488.78x = 39,311.87 × 16,551.95
  4. Step 4: Simplify right side
    28,488.78x = 650,687,827.33
  5. Step 5: Solve for x
    x = 650,687,827.33/28,488.78
  6. Step 6: Final answer
    x = 22,840.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.