Home / 33,110.40-49,689.96-20,648.64

Finding the Fourth Proportional to 33,110.40, 49,689.96 and 20,648.64

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Solution

The fourth proportional to 33,110.40, 49,689.96 and 20,648.64 is: 30,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,110.40 : 49,689.96 = 20,648.64 : x
  2. Step 2: Convert to fraction form
    33,110.40/49,689.96 = 20,648.64/x
  3. Step 3: Cross multiply
    33,110.40x = 49,689.96 × 20,648.64
  4. Step 4: Simplify right side
    33,110.40x = 1,026,030,095.65
  5. Step 5: Solve for x
    x = 1,026,030,095.65/33,110.40
  6. Step 6: Final answer
    x = 30,988.15

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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.