Home / 16,326.41-22,511.21-15,115.88

Finding the Fourth Proportional to 16,326.41, 22,511.21 and 15,115.88

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Solution

The fourth proportional to 16,326.41, 22,511.21 and 15,115.88 is: 20,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,326.41 : 22,511.21 = 15,115.88 : x
  2. Step 2: Convert to fraction form
    16,326.41/22,511.21 = 15,115.88/x
  3. Step 3: Cross multiply
    16,326.41x = 22,511.21 × 15,115.88
  4. Step 4: Simplify right side
    16,326.41x = 340,276,729.71
  5. Step 5: Solve for x
    x = 340,276,729.71/16,326.41
  6. Step 6: Final answer
    x = 20,842.11

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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.