Home / 20,286.32-30,411.72-9,751.08

Finding the Fourth Proportional to 20,286.32, 30,411.72 and 9,751.08

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Solution

The fourth proportional to 20,286.32, 30,411.72 and 9,751.08 is: 14,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.32 : 30,411.72 = 9,751.08 : x
  2. Step 2: Convert to fraction form
    20,286.32/30,411.72 = 9,751.08/x
  3. Step 3: Cross multiply
    20,286.32x = 30,411.72 × 9,751.08
  4. Step 4: Simplify right side
    20,286.32x = 296,547,114.66
  5. Step 5: Solve for x
    x = 296,547,114.66/20,286.32
  6. Step 6: Final answer
    x = 14,618.08

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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.