Home / 19,876.28-29,814.20-5,085.08

Finding the Fourth Proportional to 19,876.28, 29,814.20 and 5,085.08

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Solution

The fourth proportional to 19,876.28, 29,814.20 and 5,085.08 is: 7,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.28 : 29,814.20 = 5,085.08 : x
  2. Step 2: Convert to fraction form
    19,876.28/29,814.20 = 5,085.08/x
  3. Step 3: Cross multiply
    19,876.28x = 29,814.20 × 5,085.08
  4. Step 4: Simplify right side
    19,876.28x = 151,607,455.78
  5. Step 5: Solve for x
    x = 151,607,455.78/19,876.28
  6. Step 6: Final answer
    x = 7,627.56

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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.