Home / 20,299.11-30,454.80-14,387.41

Finding the Fourth Proportional to 20,299.11, 30,454.80 and 14,387.41

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Solution

The fourth proportional to 20,299.11, 30,454.80 and 14,387.41 is: 21,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.11 : 30,454.80 = 14,387.41 : x
  2. Step 2: Convert to fraction form
    20,299.11/30,454.80 = 14,387.41/x
  3. Step 3: Cross multiply
    20,299.11x = 30,454.80 × 14,387.41
  4. Step 4: Simplify right side
    20,299.11x = 438,165,694.07
  5. Step 5: Solve for x
    x = 438,165,694.07/20,299.11
  6. Step 6: Final answer
    x = 21,585.46

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1.5x scale

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.