Home / 20,884.52-31,325.09-10,207.58

Finding the Fourth Proportional to 20,884.52, 31,325.09 and 10,207.58

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Solution

The fourth proportional to 20,884.52, 31,325.09 and 10,207.58 is: 15,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.52 : 31,325.09 = 10,207.58 : x
  2. Step 2: Convert to fraction form
    20,884.52/31,325.09 = 10,207.58/x
  3. Step 3: Cross multiply
    20,884.52x = 31,325.09 × 10,207.58
  4. Step 4: Simplify right side
    20,884.52x = 319,753,154.52
  5. Step 5: Solve for x
    x = 319,753,154.52/20,884.52
  6. Step 6: Final answer
    x = 15,310.53

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1.5x scale

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.