Home / 17,142.11-23,657.85-10,428.20

Finding the Fourth Proportional to 17,142.11, 23,657.85 and 10,428.20

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Solution

The fourth proportional to 17,142.11, 23,657.85 and 10,428.20 is: 14,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,142.11 : 23,657.85 = 10,428.20 : x
  2. Step 2: Convert to fraction form
    17,142.11/23,657.85 = 10,428.20/x
  3. Step 3: Cross multiply
    17,142.11x = 23,657.85 × 10,428.20
  4. Step 4: Simplify right side
    17,142.11x = 246,708,791.37
  5. Step 5: Solve for x
    x = 246,708,791.37/17,142.11
  6. Step 6: Final answer
    x = 14,391.97

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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.