Home / 25,869.56-38,784.56-11,819.84

Finding the Fourth Proportional to 25,869.56, 38,784.56 and 11,819.84

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Solution

The fourth proportional to 25,869.56, 38,784.56 and 11,819.84 is: 17,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.56 : 38,784.56 = 11,819.84 : x
  2. Step 2: Convert to fraction form
    25,869.56/38,784.56 = 11,819.84/x
  3. Step 3: Cross multiply
    25,869.56x = 38,784.56 × 11,819.84
  4. Step 4: Simplify right side
    25,869.56x = 458,427,293.67
  5. Step 5: Solve for x
    x = 458,427,293.67/25,869.56
  6. Step 6: Final answer
    x = 17,720.72

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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.