Home / 40,399.40-60,455.10-25,615.40

Finding the Fourth Proportional to 40,399.40, 60,455.10 and 25,615.40

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Solution

The fourth proportional to 40,399.40, 60,455.10 and 25,615.40 is: 38,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,399.40 : 60,455.10 = 25,615.40 : x
  2. Step 2: Convert to fraction form
    40,399.40/60,455.10 = 25,615.40/x
  3. Step 3: Cross multiply
    40,399.40x = 60,455.10 × 25,615.40
  4. Step 4: Simplify right side
    40,399.40x = 1,548,581,568.54
  5. Step 5: Solve for x
    x = 1,548,581,568.54/40,399.40
  6. Step 6: Final answer
    x = 38,331.80

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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.