Home / 40,265.28-60,370.36-20,505.60

Finding the Fourth Proportional to 40,265.28, 60,370.36 and 20,505.60

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Solution

The fourth proportional to 40,265.28, 60,370.36 and 20,505.60 is: 30,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,265.28 : 60,370.36 = 20,505.60 : x
  2. Step 2: Convert to fraction form
    40,265.28/60,370.36 = 20,505.60/x
  3. Step 3: Cross multiply
    40,265.28x = 60,370.36 × 20,505.60
  4. Step 4: Simplify right side
    40,265.28x = 1,237,930,454.02
  5. Step 5: Solve for x
    x = 1,237,930,454.02/40,265.28
  6. Step 6: Final answer
    x = 30,744.36

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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.