Home / 40,252.80-60,379.20-25,478.40

Finding the Fourth Proportional to 40,252.80, 60,379.20 and 25,478.40

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Solution

The fourth proportional to 40,252.80, 60,379.20 and 25,478.40 is: 38,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,252.80 : 60,379.20 = 25,478.40 : x
  2. Step 2: Convert to fraction form
    40,252.80/60,379.20 = 25,478.40/x
  3. Step 3: Cross multiply
    40,252.80x = 60,379.20 × 25,478.40
  4. Step 4: Simplify right side
    40,252.80x = 1,538,365,409.28
  5. Step 5: Solve for x
    x = 1,538,365,409.28/40,252.80
  6. Step 6: Final answer
    x = 38,217.60

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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.