Home / 31,428.65-43,359.17-17,992.67

Finding the Fourth Proportional to 31,428.65, 43,359.17 and 17,992.67

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Solution

The fourth proportional to 31,428.65, 43,359.17 and 17,992.67 is: 24,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.65 : 43,359.17 = 17,992.67 : x
  2. Step 2: Convert to fraction form
    31,428.65/43,359.17 = 17,992.67/x
  3. Step 3: Cross multiply
    31,428.65x = 43,359.17 × 17,992.67
  4. Step 4: Simplify right side
    31,428.65x = 780,146,930.52
  5. Step 5: Solve for x
    x = 780,146,930.52/31,428.65
  6. Step 6: Final answer
    x = 24,822.80

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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.