Home / 27,399.68-37,812.16-15,135.06

Finding the Fourth Proportional to 27,399.68, 37,812.16 and 15,135.06

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Solution

The fourth proportional to 27,399.68, 37,812.16 and 15,135.06 is: 20,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,399.68 : 37,812.16 = 15,135.06 : x
  2. Step 2: Convert to fraction form
    27,399.68/37,812.16 = 15,135.06/x
  3. Step 3: Cross multiply
    27,399.68x = 37,812.16 × 15,135.06
  4. Step 4: Simplify right side
    27,399.68x = 572,289,083.43
  5. Step 5: Solve for x
    x = 572,289,083.43/27,399.68
  6. Step 6: Final answer
    x = 20,886.71

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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.