Home / 31,521.11-43,491.44-18,766.10

Finding the Fourth Proportional to 31,521.11, 43,491.44 and 18,766.10

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Solution

The fourth proportional to 31,521.11, 43,491.44 and 18,766.10 is: 25,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.11 : 43,491.44 = 18,766.10 : x
  2. Step 2: Convert to fraction form
    31,521.11/43,491.44 = 18,766.10/x
  3. Step 3: Cross multiply
    31,521.11x = 43,491.44 × 18,766.10
  4. Step 4: Simplify right side
    31,521.11x = 816,164,867.83
  5. Step 5: Solve for x
    x = 816,164,867.83/31,521.11
  6. Step 6: Final answer
    x = 25,892.65

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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.