Home / 20,326.23-28,081.13-16,246.87

Finding the Fourth Proportional to 20,326.23, 28,081.13 and 16,246.87

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Solution

The fourth proportional to 20,326.23, 28,081.13 and 16,246.87 is: 22,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.23 : 28,081.13 = 16,246.87 : x
  2. Step 2: Convert to fraction form
    20,326.23/28,081.13 = 16,246.87/x
  3. Step 3: Cross multiply
    20,326.23x = 28,081.13 × 16,246.87
  4. Step 4: Simplify right side
    20,326.23x = 456,230,317.13
  5. Step 5: Solve for x
    x = 456,230,317.13/20,326.23
  6. Step 6: Final answer
    x = 22,445.40

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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.