Home / 31,309.92-43,199.04-17,876.28

Finding the Fourth Proportional to 31,309.92, 43,199.04 and 17,876.28

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Solution

The fourth proportional to 31,309.92, 43,199.04 and 17,876.28 is: 24,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.92 : 43,199.04 = 17,876.28 : x
  2. Step 2: Convert to fraction form
    31,309.92/43,199.04 = 17,876.28/x
  3. Step 3: Cross multiply
    31,309.92x = 43,199.04 × 17,876.28
  4. Step 4: Simplify right side
    31,309.92x = 772,238,134.77
  5. Step 5: Solve for x
    x = 772,238,134.77/31,309.92
  6. Step 6: Final answer
    x = 24,664.33

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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.