Home / 27,129.40-37,440.78-15,648.04

Finding the Fourth Proportional to 27,129.40, 37,440.78 and 15,648.04

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Solution

The fourth proportional to 27,129.40, 37,440.78 and 15,648.04 is: 21,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.40 : 37,440.78 = 15,648.04 : x
  2. Step 2: Convert to fraction form
    27,129.40/37,440.78 = 15,648.04/x
  3. Step 3: Cross multiply
    27,129.40x = 37,440.78 × 15,648.04
  4. Step 4: Simplify right side
    27,129.40x = 585,874,823.07
  5. Step 5: Solve for x
    x = 585,874,823.07/27,129.40
  6. Step 6: Final answer
    x = 21,595.57

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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.