Home / 31,866.18-43,975.38-17,718.90

Finding the Fourth Proportional to 31,866.18, 43,975.38 and 17,718.90

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Solution

The fourth proportional to 31,866.18, 43,975.38 and 17,718.90 is: 24,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.18 : 43,975.38 = 17,718.90 : x
  2. Step 2: Convert to fraction form
    31,866.18/43,975.38 = 17,718.90/x
  3. Step 3: Cross multiply
    31,866.18x = 43,975.38 × 17,718.90
  4. Step 4: Simplify right side
    31,866.18x = 779,195,360.68
  5. Step 5: Solve for x
    x = 779,195,360.68/31,866.18
  6. Step 6: Final answer
    x = 24,452.11

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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.