Home / 28,387.80-39,171.61-16,450.92

Finding the Fourth Proportional to 28,387.80, 39,171.61 and 16,450.92

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Solution

The fourth proportional to 28,387.80, 39,171.61 and 16,450.92 is: 22,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.80 : 39,171.61 = 16,450.92 : x
  2. Step 2: Convert to fraction form
    28,387.80/39,171.61 = 16,450.92/x
  3. Step 3: Cross multiply
    28,387.80x = 39,171.61 × 16,450.92
  4. Step 4: Simplify right side
    28,387.80x = 644,408,744.27
  5. Step 5: Solve for x
    x = 644,408,744.27/28,387.80
  6. Step 6: Final answer
    x = 22,700.20

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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.