Home / 20,935.46-31,366.60-17,447.87

Finding the Fourth Proportional to 20,935.46, 31,366.60 and 17,447.87

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Solution

The fourth proportional to 20,935.46, 31,366.60 and 17,447.87 is: 26,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.46 : 31,366.60 = 17,447.87 : x
  2. Step 2: Convert to fraction form
    20,935.46/31,366.60 = 17,447.87/x
  3. Step 3: Cross multiply
    20,935.46x = 31,366.60 × 17,447.87
  4. Step 4: Simplify right side
    20,935.46x = 547,280,393.94
  5. Step 5: Solve for x
    x = 547,280,393.94/20,935.46
  6. Step 6: Final answer
    x = 26,141.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.