Home / 31,426.08-43,368-17,278.56

Finding the Fourth Proportional to 31,426.08, 43,368 and 17,278.56

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Solution

The fourth proportional to 31,426.08, 43,368 and 17,278.56 is: 23,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.08 : 43,368 = 17,278.56 : x
  2. Step 2: Convert to fraction form
    31,426.08/43,368 = 17,278.56/x
  3. Step 3: Cross multiply
    31,426.08x = 43,368 × 17,278.56
  4. Step 4: Simplify right side
    31,426.08x = 749,336,590.08
  5. Step 5: Solve for x
    x = 749,336,590.08/31,426.08
  6. Step 6: Final answer
    x = 23,844.42

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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.