Home / 31,250.16-43,111.32-18,667.44

Finding the Fourth Proportional to 31,250.16, 43,111.32 and 18,667.44

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Solution

The fourth proportional to 31,250.16, 43,111.32 and 18,667.44 is: 25,752.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,250.16 : 43,111.32 = 18,667.44 : x
  2. Step 2: Convert to fraction form
    31,250.16/43,111.32 = 18,667.44/x
  3. Step 3: Cross multiply
    31,250.16x = 43,111.32 × 18,667.44
  4. Step 4: Simplify right side
    31,250.16x = 804,777,979.42
  5. Step 5: Solve for x
    x = 804,777,979.42/31,250.16
  6. Step 6: Final answer
    x = 25,752.76

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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.