Home / 20,285.24-30,437.78-11,395

Finding the Fourth Proportional to 20,285.24, 30,437.78 and 11,395

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Solution

The fourth proportional to 20,285.24, 30,437.78 and 11,395 is: 17,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.24 : 30,437.78 = 11,395 : x
  2. Step 2: Convert to fraction form
    20,285.24/30,437.78 = 11,395/x
  3. Step 3: Cross multiply
    20,285.24x = 30,437.78 × 11,395
  4. Step 4: Simplify right side
    20,285.24x = 346,838,503.10
  5. Step 5: Solve for x
    x = 346,838,503.10/20,285.24
  6. Step 6: Final answer
    x = 17,098.07

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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.