Home / 25,101.28-37,679.16-18,879.04

Finding the Fourth Proportional to 25,101.28, 37,679.16 and 18,879.04

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Solution

The fourth proportional to 25,101.28, 37,679.16 and 18,879.04 is: 28,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,101.28 : 37,679.16 = 18,879.04 : x
  2. Step 2: Convert to fraction form
    25,101.28/37,679.16 = 18,879.04/x
  3. Step 3: Cross multiply
    25,101.28x = 37,679.16 × 18,879.04
  4. Step 4: Simplify right side
    25,101.28x = 711,346,368.81
  5. Step 5: Solve for x
    x = 711,346,368.81/25,101.28
  6. Step 6: Final answer
    x = 28,339.05

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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.