Home / 28,144.30-42,209.70-16,272.40

Finding the Fourth Proportional to 28,144.30, 42,209.70 and 16,272.40

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Solution

The fourth proportional to 28,144.30, 42,209.70 and 16,272.40 is: 24,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.30 : 42,209.70 = 16,272.40 : x
  2. Step 2: Convert to fraction form
    28,144.30/42,209.70 = 16,272.40/x
  3. Step 3: Cross multiply
    28,144.30x = 42,209.70 × 16,272.40
  4. Step 4: Simplify right side
    28,144.30x = 686,853,122.28
  5. Step 5: Solve for x
    x = 686,853,122.28/28,144.30
  6. Step 6: Final answer
    x = 24,404.70

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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.