Home / 20,657.14-30,951.66-11,899.42

Finding the Fourth Proportional to 20,657.14, 30,951.66 and 11,899.42

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Solution

The fourth proportional to 20,657.14, 30,951.66 and 11,899.42 is: 17,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.14 : 30,951.66 = 11,899.42 : x
  2. Step 2: Convert to fraction form
    20,657.14/30,951.66 = 11,899.42/x
  3. Step 3: Cross multiply
    20,657.14x = 30,951.66 × 11,899.42
  4. Step 4: Simplify right side
    20,657.14x = 368,306,802.04
  5. Step 5: Solve for x
    x = 368,306,802.04/20,657.14
  6. Step 6: Final answer
    x = 17,829.52

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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.