Home / 31,227.68-43,085.52-18,647.84

Finding the Fourth Proportional to 31,227.68, 43,085.52 and 18,647.84

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Solution

The fourth proportional to 31,227.68, 43,085.52 and 18,647.84 is: 25,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,227.68 : 43,085.52 = 18,647.84 : x
  2. Step 2: Convert to fraction form
    31,227.68/43,085.52 = 18,647.84/x
  3. Step 3: Cross multiply
    31,227.68x = 43,085.52 × 18,647.84
  4. Step 4: Simplify right side
    31,227.68x = 803,451,883.28
  5. Step 5: Solve for x
    x = 803,451,883.28/31,227.68
  6. Step 6: Final answer
    x = 25,728.84

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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.