Home / 27,135.53-37,447.13-15,812.79

Finding the Fourth Proportional to 27,135.53, 37,447.13 and 15,812.79

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Solution

The fourth proportional to 27,135.53, 37,447.13 and 15,812.79 is: 21,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.53 : 37,447.13 = 15,812.79 : x
  2. Step 2: Convert to fraction form
    27,135.53/37,447.13 = 15,812.79/x
  3. Step 3: Cross multiply
    27,135.53x = 37,447.13 × 15,812.79
  4. Step 4: Simplify right side
    27,135.53x = 592,143,523.73
  5. Step 5: Solve for x
    x = 592,143,523.73/27,135.53
  6. Step 6: Final answer
    x = 21,821.71

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1.5x scale

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.