Home / 38,516.65-57,680.57-31,812.11

Finding the Fourth Proportional to 38,516.65, 57,680.57 and 31,812.11

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Solution

The fourth proportional to 38,516.65, 57,680.57 and 31,812.11 is: 47,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.65 : 57,680.57 = 31,812.11 : x
  2. Step 2: Convert to fraction form
    38,516.65/57,680.57 = 31,812.11/x
  3. Step 3: Cross multiply
    38,516.65x = 57,680.57 × 31,812.11
  4. Step 4: Simplify right side
    38,516.65x = 1,834,940,645.13
  5. Step 5: Solve for x
    x = 1,834,940,645.13/38,516.65
  6. Step 6: Final answer
    x = 47,640.20

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1.5x scale

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.