Home / 38,532.72-53,172.72-21,535.68

Finding the Fourth Proportional to 38,532.72, 53,172.72 and 21,535.68

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Solution

The fourth proportional to 38,532.72, 53,172.72 and 21,535.68 is: 29,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,532.72 : 53,172.72 = 21,535.68 : x
  2. Step 2: Convert to fraction form
    38,532.72/53,172.72 = 21,535.68/x
  3. Step 3: Cross multiply
    38,532.72x = 53,172.72 × 21,535.68
  4. Step 4: Simplify right side
    38,532.72x = 1,145,110,682.65
  5. Step 5: Solve for x
    x = 1,145,110,682.65/38,532.72
  6. Step 6: Final answer
    x = 29,717.88

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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.