Home / 31,754.95-43,839.76-21,697.99

Finding the Fourth Proportional to 31,754.95, 43,839.76 and 21,697.99

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Solution

The fourth proportional to 31,754.95, 43,839.76 and 21,697.99 is: 29,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,754.95 : 43,839.76 = 21,697.99 : x
  2. Step 2: Convert to fraction form
    31,754.95/43,839.76 = 21,697.99/x
  3. Step 3: Cross multiply
    31,754.95x = 43,839.76 × 21,697.99
  4. Step 4: Simplify right side
    31,754.95x = 951,234,674.08
  5. Step 5: Solve for x
    x = 951,234,674.08/31,754.95
  6. Step 6: Final answer
    x = 29,955.48

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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.