Home / 28,897.57-39,878.50-16,150.75

Finding the Fourth Proportional to 28,897.57, 39,878.50 and 16,150.75

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Solution

The fourth proportional to 28,897.57, 39,878.50 and 16,150.75 is: 22,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.57 : 39,878.50 = 16,150.75 : x
  2. Step 2: Convert to fraction form
    28,897.57/39,878.50 = 16,150.75/x
  3. Step 3: Cross multiply
    28,897.57x = 39,878.50 × 16,150.75
  4. Step 4: Simplify right side
    28,897.57x = 644,067,683.88
  5. Step 5: Solve for x
    x = 644,067,683.88/28,897.57
  6. Step 6: Final answer
    x = 22,287.95

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1.5x scale

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.