Home / 31,428.87-43,359.53-17,992.92

Finding the Fourth Proportional to 31,428.87, 43,359.53 and 17,992.92

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Solution

The fourth proportional to 31,428.87, 43,359.53 and 17,992.92 is: 24,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.87 : 43,359.53 = 17,992.92 : x
  2. Step 2: Convert to fraction form
    31,428.87/43,359.53 = 17,992.92/x
  3. Step 3: Cross multiply
    31,428.87x = 43,359.53 × 17,992.92
  4. Step 4: Simplify right side
    31,428.87x = 780,164,554.53
  5. Step 5: Solve for x
    x = 780,164,554.53/31,428.87
  6. Step 6: Final answer
    x = 24,823.18

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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.