Home / 31,635.92-43,656.35-18,891.24

Finding the Fourth Proportional to 31,635.92, 43,656.35 and 18,891.24

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Solution

The fourth proportional to 31,635.92, 43,656.35 and 18,891.24 is: 26,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,635.92 : 43,656.35 = 18,891.24 : x
  2. Step 2: Convert to fraction form
    31,635.92/43,656.35 = 18,891.24/x
  3. Step 3: Cross multiply
    31,635.92x = 43,656.35 × 18,891.24
  4. Step 4: Simplify right side
    31,635.92x = 824,722,490.92
  5. Step 5: Solve for x
    x = 824,722,490.92/31,635.92
  6. Step 6: Final answer
    x = 26,069.18

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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.