Home / 33,020.16-49,497.65-21,140.11

Finding the Fourth Proportional to 33,020.16, 49,497.65 and 21,140.11

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Solution

The fourth proportional to 33,020.16, 49,497.65 and 21,140.11 is: 31,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,020.16 : 49,497.65 = 21,140.11 : x
  2. Step 2: Convert to fraction form
    33,020.16/49,497.65 = 21,140.11/x
  3. Step 3: Cross multiply
    33,020.16x = 49,497.65 × 21,140.11
  4. Step 4: Simplify right side
    33,020.16x = 1,046,385,522.76
  5. Step 5: Solve for x
    x = 1,046,385,522.76/33,020.16
  6. Step 6: Final answer
    x = 31,689.30

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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.