Home / 28,091.60-42,137.40-25,499.60

Finding the Fourth Proportional to 28,091.60, 42,137.40 and 25,499.60

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Solution

The fourth proportional to 28,091.60, 42,137.40 and 25,499.60 is: 38,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.60 : 42,137.40 = 25,499.60 : x
  2. Step 2: Convert to fraction form
    28,091.60/42,137.40 = 25,499.60/x
  3. Step 3: Cross multiply
    28,091.60x = 42,137.40 × 25,499.60
  4. Step 4: Simplify right side
    28,091.60x = 1,074,486,845.04
  5. Step 5: Solve for x
    x = 1,074,486,845.04/28,091.60
  6. Step 6: Final answer
    x = 38,249.40

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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.