Home / 20,823.88-31,294.14-10,442.92

Finding the Fourth Proportional to 20,823.88, 31,294.14 and 10,442.92

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Solution

The fourth proportional to 20,823.88, 31,294.14 and 10,442.92 is: 15,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.88 : 31,294.14 = 10,442.92 : x
  2. Step 2: Convert to fraction form
    20,823.88/31,294.14 = 10,442.92/x
  3. Step 3: Cross multiply
    20,823.88x = 31,294.14 × 10,442.92
  4. Step 4: Simplify right side
    20,823.88x = 326,802,200.49
  5. Step 5: Solve for x
    x = 326,802,200.49/20,823.88
  6. Step 6: Final answer
    x = 15,693.63

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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.