Home / 39,440.60-54,429.40-22,447.41

Finding the Fourth Proportional to 39,440.60, 54,429.40 and 22,447.41

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Solution

The fourth proportional to 39,440.60, 54,429.40 and 22,447.41 is: 30,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.60 : 54,429.40 = 22,447.41 : x
  2. Step 2: Convert to fraction form
    39,440.60/54,429.40 = 22,447.41/x
  3. Step 3: Cross multiply
    39,440.60x = 54,429.40 × 22,447.41
  4. Step 4: Simplify right side
    39,440.60x = 1,221,799,057.85
  5. Step 5: Solve for x
    x = 1,221,799,057.85/39,440.60
  6. Step 6: Final answer
    x = 30,978.21

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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.