Home / 31,362.32-43,279.20-17,215.04

Finding the Fourth Proportional to 31,362.32, 43,279.20 and 17,215.04

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Solution

The fourth proportional to 31,362.32, 43,279.20 and 17,215.04 is: 23,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.32 : 43,279.20 = 17,215.04 : x
  2. Step 2: Convert to fraction form
    31,362.32/43,279.20 = 17,215.04/x
  3. Step 3: Cross multiply
    31,362.32x = 43,279.20 × 17,215.04
  4. Step 4: Simplify right side
    31,362.32x = 745,053,159.17
  5. Step 5: Solve for x
    x = 745,053,159.17/31,362.32
  6. Step 6: Final answer
    x = 23,756.32

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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.