Home / 20,946.96-28,873.06-17,163.45

Finding the Fourth Proportional to 20,946.96, 28,873.06 and 17,163.45

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Solution

The fourth proportional to 20,946.96, 28,873.06 and 17,163.45 is: 23,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.96 : 28,873.06 = 17,163.45 : x
  2. Step 2: Convert to fraction form
    20,946.96/28,873.06 = 17,163.45/x
  3. Step 3: Cross multiply
    20,946.96x = 28,873.06 × 17,163.45
  4. Step 4: Simplify right side
    20,946.96x = 495,561,278.75
  5. Step 5: Solve for x
    x = 495,561,278.75/20,946.96
  6. Step 6: Final answer
    x = 23,657.91

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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.