Home / 15,285.71-22,921.77-5,291.39

Finding the Fourth Proportional to 15,285.71, 22,921.77 and 5,291.39

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Solution

The fourth proportional to 15,285.71, 22,921.77 and 5,291.39 is: 7,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.71 : 22,921.77 = 5,291.39 : x
  2. Step 2: Convert to fraction form
    15,285.71/22,921.77 = 5,291.39/x
  3. Step 3: Cross multiply
    15,285.71x = 22,921.77 × 5,291.39
  4. Step 4: Simplify right side
    15,285.71x = 121,288,024.56
  5. Step 5: Solve for x
    x = 121,288,024.56/15,285.71
  6. Step 6: Final answer
    x = 7,934.73

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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.