Home / 31,866.12-43,976.34-17,719.92

Finding the Fourth Proportional to 31,866.12, 43,976.34 and 17,719.92

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Solution

The fourth proportional to 31,866.12, 43,976.34 and 17,719.92 is: 24,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.12 : 43,976.34 = 17,719.92 : x
  2. Step 2: Convert to fraction form
    31,866.12/43,976.34 = 17,719.92/x
  3. Step 3: Cross multiply
    31,866.12x = 43,976.34 × 17,719.92
  4. Step 4: Simplify right side
    31,866.12x = 779,257,226.69
  5. Step 5: Solve for x
    x = 779,257,226.69/31,866.12
  6. Step 6: Final answer
    x = 24,454.10

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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.