Home / 22,685.76-31,330.26-20,212.02

Finding the Fourth Proportional to 22,685.76, 31,330.26 and 20,212.02

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Solution

The fourth proportional to 22,685.76, 31,330.26 and 20,212.02 is: 27,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.76 : 31,330.26 = 20,212.02 : x
  2. Step 2: Convert to fraction form
    22,685.76/31,330.26 = 20,212.02/x
  3. Step 3: Cross multiply
    22,685.76x = 31,330.26 × 20,212.02
  4. Step 4: Simplify right side
    22,685.76x = 633,247,841.73
  5. Step 5: Solve for x
    x = 633,247,841.73/22,685.76
  6. Step 6: Final answer
    x = 27,913.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.