Home / 38,090.40-57,135.60-28,248.90

Finding the Fourth Proportional to 38,090.40, 57,135.60 and 28,248.90

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Solution

The fourth proportional to 38,090.40, 57,135.60 and 28,248.90 is: 42,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,090.40 : 57,135.60 = 28,248.90 : x
  2. Step 2: Convert to fraction form
    38,090.40/57,135.60 = 28,248.90/x
  3. Step 3: Cross multiply
    38,090.40x = 57,135.60 × 28,248.90
  4. Step 4: Simplify right side
    38,090.40x = 1,614,017,850.84
  5. Step 5: Solve for x
    x = 1,614,017,850.84/38,090.40
  6. Step 6: Final answer
    x = 42,373.35

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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.