Home / 31,490.44-43,455.20-17,340.55

Finding the Fourth Proportional to 31,490.44, 43,455.20 and 17,340.55

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Solution

The fourth proportional to 31,490.44, 43,455.20 and 17,340.55 is: 23,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.44 : 43,455.20 = 17,340.55 : x
  2. Step 2: Convert to fraction form
    31,490.44/43,455.20 = 17,340.55/x
  3. Step 3: Cross multiply
    31,490.44x = 43,455.20 × 17,340.55
  4. Step 4: Simplify right side
    31,490.44x = 753,536,873.02
  5. Step 5: Solve for x
    x = 753,536,873.02/31,490.44
  6. Step 6: Final answer
    x = 23,929.07

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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.