Home / 20,944.71-28,869.95-17,161.20

Finding the Fourth Proportional to 20,944.71, 28,869.95 and 17,161.20

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Solution

The fourth proportional to 20,944.71, 28,869.95 and 17,161.20 is: 23,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.71 : 28,869.95 = 17,161.20 : x
  2. Step 2: Convert to fraction form
    20,944.71/28,869.95 = 17,161.20/x
  3. Step 3: Cross multiply
    20,944.71x = 28,869.95 × 17,161.20
  4. Step 4: Simplify right side
    20,944.71x = 495,443,028.84
  5. Step 5: Solve for x
    x = 495,443,028.84/20,944.71
  6. Step 6: Final answer
    x = 23,654.80

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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.