Home / 31,418.08-43,356.20-17,077.56

Finding the Fourth Proportional to 31,418.08, 43,356.20 and 17,077.56

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Solution

The fourth proportional to 31,418.08, 43,356.20 and 17,077.56 is: 23,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.08 : 43,356.20 = 17,077.56 : x
  2. Step 2: Convert to fraction form
    31,418.08/43,356.20 = 17,077.56/x
  3. Step 3: Cross multiply
    31,418.08x = 43,356.20 × 17,077.56
  4. Step 4: Simplify right side
    31,418.08x = 740,418,106.87
  5. Step 5: Solve for x
    x = 740,418,106.87/31,418.08
  6. Step 6: Final answer
    x = 23,566.62

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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.