Home / 28,747.38-39,671.10-16,000.38

Finding the Fourth Proportional to 28,747.38, 39,671.10 and 16,000.38

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Solution

The fourth proportional to 28,747.38, 39,671.10 and 16,000.38 is: 22,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.38 : 39,671.10 = 16,000.38 : x
  2. Step 2: Convert to fraction form
    28,747.38/39,671.10 = 16,000.38/x
  3. Step 3: Cross multiply
    28,747.38x = 39,671.10 × 16,000.38
  4. Step 4: Simplify right side
    28,747.38x = 634,752,675.02
  5. Step 5: Solve for x
    x = 634,752,675.02/28,747.38
  6. Step 6: Final answer
    x = 22,080.37

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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.