Home / 39,200.76-54,103.50-28,625.40

Finding the Fourth Proportional to 39,200.76, 54,103.50 and 28,625.40

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Solution

The fourth proportional to 39,200.76, 54,103.50 and 28,625.40 is: 39,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.76 : 54,103.50 = 28,625.40 : x
  2. Step 2: Convert to fraction form
    39,200.76/54,103.50 = 28,625.40/x
  3. Step 3: Cross multiply
    39,200.76x = 54,103.50 × 28,625.40
  4. Step 4: Simplify right side
    39,200.76x = 1,548,734,328.90
  5. Step 5: Solve for x
    x = 1,548,734,328.90/39,200.76
  6. Step 6: Final answer
    x = 39,507.76

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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.