Home / 28,747.90-39,671.13-16,170.22

Finding the Fourth Proportional to 28,747.90, 39,671.13 and 16,170.22

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Solution

The fourth proportional to 28,747.90, 39,671.13 and 16,170.22 is: 22,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.90 : 39,671.13 = 16,170.22 : x
  2. Step 2: Convert to fraction form
    28,747.90/39,671.13 = 16,170.22/x
  3. Step 3: Cross multiply
    28,747.90x = 39,671.13 × 16,170.22
  4. Step 4: Simplify right side
    28,747.90x = 641,490,899.75
  5. Step 5: Solve for x
    x = 641,490,899.75/28,747.90
  6. Step 6: Final answer
    x = 22,314.36

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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.