Home / 28,301.20-42,451.80-25,676.80

Finding the Fourth Proportional to 28,301.20, 42,451.80 and 25,676.80

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Solution

The fourth proportional to 28,301.20, 42,451.80 and 25,676.80 is: 38,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.20 : 42,451.80 = 25,676.80 : x
  2. Step 2: Convert to fraction form
    28,301.20/42,451.80 = 25,676.80/x
  3. Step 3: Cross multiply
    28,301.20x = 42,451.80 × 25,676.80
  4. Step 4: Simplify right side
    28,301.20x = 1,090,026,378.24
  5. Step 5: Solve for x
    x = 1,090,026,378.24/28,301.20
  6. Step 6: Final answer
    x = 38,515.20

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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.