Home / 27,720.07-38,253.82-15,144.82

Finding the Fourth Proportional to 27,720.07, 38,253.82 and 15,144.82

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Solution

The fourth proportional to 27,720.07, 38,253.82 and 15,144.82 is: 20,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.07 : 38,253.82 = 15,144.82 : x
  2. Step 2: Convert to fraction form
    27,720.07/38,253.82 = 15,144.82/x
  3. Step 3: Cross multiply
    27,720.07x = 38,253.82 × 15,144.82
  4. Step 4: Simplify right side
    27,720.07x = 579,347,328.29
  5. Step 5: Solve for x
    x = 579,347,328.29/27,720.07
  6. Step 6: Final answer
    x = 20,899.92

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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.