Home / 31,011.22-42,794.22-18,264.94

Finding the Fourth Proportional to 31,011.22, 42,794.22 and 18,264.94

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Solution

The fourth proportional to 31,011.22, 42,794.22 and 18,264.94 is: 25,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,011.22 : 42,794.22 = 18,264.94 : x
  2. Step 2: Convert to fraction form
    31,011.22/42,794.22 = 18,264.94/x
  3. Step 3: Cross multiply
    31,011.22x = 42,794.22 × 18,264.94
  4. Step 4: Simplify right side
    31,011.22x = 781,633,860.65
  5. Step 5: Solve for x
    x = 781,633,860.65/31,011.22
  6. Step 6: Final answer
    x = 25,204.87

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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.