Home / 18,955.99-28,377.82-14,047.66

Finding the Fourth Proportional to 18,955.99, 28,377.82 and 14,047.66

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Solution

The fourth proportional to 18,955.99, 28,377.82 and 14,047.66 is: 21,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.99 : 28,377.82 = 14,047.66 : x
  2. Step 2: Convert to fraction form
    18,955.99/28,377.82 = 14,047.66/x
  3. Step 3: Cross multiply
    18,955.99x = 28,377.82 × 14,047.66
  4. Step 4: Simplify right side
    18,955.99x = 398,641,966.90
  5. Step 5: Solve for x
    x = 398,641,966.90/18,955.99
  6. Step 6: Final answer
    x = 21,029.87

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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.