Home / 28,246.74-42,381.27-10,721.22

Finding the Fourth Proportional to 28,246.74, 42,381.27 and 10,721.22

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Solution

The fourth proportional to 28,246.74, 42,381.27 and 10,721.22 is: 16,086.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.74 : 42,381.27 = 10,721.22 : x
  2. Step 2: Convert to fraction form
    28,246.74/42,381.27 = 10,721.22/x
  3. Step 3: Cross multiply
    28,246.74x = 42,381.27 × 10,721.22
  4. Step 4: Simplify right side
    28,246.74x = 454,378,919.55
  5. Step 5: Solve for x
    x = 454,378,919.55/28,246.74
  6. Step 6: Final answer
    x = 16,086.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.