Home / 28,122.49-42,249.35-16,443.91

Finding the Fourth Proportional to 28,122.49, 42,249.35 and 16,443.91

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Solution

The fourth proportional to 28,122.49, 42,249.35 and 16,443.91 is: 24,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.49 : 42,249.35 = 16,443.91 : x
  2. Step 2: Convert to fraction form
    28,122.49/42,249.35 = 16,443.91/x
  3. Step 3: Cross multiply
    28,122.49x = 42,249.35 × 16,443.91
  4. Step 4: Simplify right side
    28,122.49x = 694,744,508.96
  5. Step 5: Solve for x
    x = 694,744,508.96/28,122.49
  6. Step 6: Final answer
    x = 24,704.23

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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.