Home / 31,086.74-42,898.35-17,657.96

Finding the Fourth Proportional to 31,086.74, 42,898.35 and 17,657.96

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Solution

The fourth proportional to 31,086.74, 42,898.35 and 17,657.96 is: 24,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,086.74 : 42,898.35 = 17,657.96 : x
  2. Step 2: Convert to fraction form
    31,086.74/42,898.35 = 17,657.96/x
  3. Step 3: Cross multiply
    31,086.74x = 42,898.35 × 17,657.96
  4. Step 4: Simplify right side
    31,086.74x = 757,497,133.87
  5. Step 5: Solve for x
    x = 757,497,133.87/31,086.74
  6. Step 6: Final answer
    x = 24,367.21

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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.