Home / 31,277.28-43,160.40-17,127.84

Finding the Fourth Proportional to 31,277.28, 43,160.40 and 17,127.84

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Solution

The fourth proportional to 31,277.28, 43,160.40 and 17,127.84 is: 23,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.28 : 43,160.40 = 17,127.84 : x
  2. Step 2: Convert to fraction form
    31,277.28/43,160.40 = 17,127.84/x
  3. Step 3: Cross multiply
    31,277.28x = 43,160.40 × 17,127.84
  4. Step 4: Simplify right side
    31,277.28x = 739,244,425.54
  5. Step 5: Solve for x
    x = 739,244,425.54/31,277.28
  6. Step 6: Final answer
    x = 23,635.19

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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.