Home / 40,377.67-55,708.50-28,447.60

Finding the Fourth Proportional to 40,377.67, 55,708.50 and 28,447.60

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Solution

The fourth proportional to 40,377.67, 55,708.50 and 28,447.60 is: 39,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,377.67 : 55,708.50 = 28,447.60 : x
  2. Step 2: Convert to fraction form
    40,377.67/55,708.50 = 28,447.60/x
  3. Step 3: Cross multiply
    40,377.67x = 55,708.50 × 28,447.60
  4. Step 4: Simplify right side
    40,377.67x = 1,584,773,124.60
  5. Step 5: Solve for x
    x = 1,584,773,124.60/40,377.67
  6. Step 6: Final answer
    x = 39,248.75

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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.