Home / 40,417.20-60,625.80-12,711.60

Finding the Fourth Proportional to 40,417.20, 60,625.80 and 12,711.60

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Solution

The fourth proportional to 40,417.20, 60,625.80 and 12,711.60 is: 19,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,417.20 : 60,625.80 = 12,711.60 : x
  2. Step 2: Convert to fraction form
    40,417.20/60,625.80 = 12,711.60/x
  3. Step 3: Cross multiply
    40,417.20x = 60,625.80 × 12,711.60
  4. Step 4: Simplify right side
    40,417.20x = 770,650,919.28
  5. Step 5: Solve for x
    x = 770,650,919.28/40,417.20
  6. Step 6: Final answer
    x = 19,067.40

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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.