Home / 31,428.46-43,358.90-17,992.47

Finding the Fourth Proportional to 31,428.46, 43,358.90 and 17,992.47

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Solution

The fourth proportional to 31,428.46, 43,358.90 and 17,992.47 is: 24,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.46 : 43,358.90 = 17,992.47 : x
  2. Step 2: Convert to fraction form
    31,428.46/43,358.90 = 17,992.47/x
  3. Step 3: Cross multiply
    31,428.46x = 43,358.90 × 17,992.47
  4. Step 4: Simplify right side
    31,428.46x = 780,133,752.46
  5. Step 5: Solve for x
    x = 780,133,752.46/31,428.46
  6. Step 6: Final answer
    x = 24,822.53

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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.