Home / 25,120.25-37,645.19-18,876.28

Finding the Fourth Proportional to 25,120.25, 37,645.19 and 18,876.28

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Solution

The fourth proportional to 25,120.25, 37,645.19 and 18,876.28 is: 28,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.25 : 37,645.19 = 18,876.28 : x
  2. Step 2: Convert to fraction form
    25,120.25/37,645.19 = 18,876.28/x
  3. Step 3: Cross multiply
    25,120.25x = 37,645.19 × 18,876.28
  4. Step 4: Simplify right side
    25,120.25x = 710,601,135.36
  5. Step 5: Solve for x
    x = 710,601,135.36/25,120.25
  6. Step 6: Final answer
    x = 28,287.98

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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.