Home / 31,695.60-43,726.20-19,113.12

Finding the Fourth Proportional to 31,695.60, 43,726.20 and 19,113.12

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Solution

The fourth proportional to 31,695.60, 43,726.20 and 19,113.12 is: 26,367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.60 : 43,726.20 = 19,113.12 : x
  2. Step 2: Convert to fraction form
    31,695.60/43,726.20 = 19,113.12/x
  3. Step 3: Cross multiply
    31,695.60x = 43,726.20 × 19,113.12
  4. Step 4: Simplify right side
    31,695.60x = 835,744,107.74
  5. Step 5: Solve for x
    x = 835,744,107.74/31,695.60
  6. Step 6: Final answer
    x = 26,367.83

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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.