Home / 39,531.50-54,566.43-28,385.90

Finding the Fourth Proportional to 39,531.50, 54,566.43 and 28,385.90

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Solution

The fourth proportional to 39,531.50, 54,566.43 and 28,385.90 is: 39,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.50 : 54,566.43 = 28,385.90 : x
  2. Step 2: Convert to fraction form
    39,531.50/54,566.43 = 28,385.90/x
  3. Step 3: Cross multiply
    39,531.50x = 54,566.43 × 28,385.90
  4. Step 4: Simplify right side
    39,531.50x = 1,548,917,225.34
  5. Step 5: Solve for x
    x = 1,548,917,225.34/39,531.50
  6. Step 6: Final answer
    x = 39,181.85

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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.