Home / 27,721.18-38,255.22-15,145.93

Finding the Fourth Proportional to 27,721.18, 38,255.22 and 15,145.93

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Solution

The fourth proportional to 27,721.18, 38,255.22 and 15,145.93 is: 20,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.18 : 38,255.22 = 15,145.93 : x
  2. Step 2: Convert to fraction form
    27,721.18/38,255.22 = 15,145.93/x
  3. Step 3: Cross multiply
    27,721.18x = 38,255.22 × 15,145.93
  4. Step 4: Simplify right side
    27,721.18x = 579,410,884.25
  5. Step 5: Solve for x
    x = 579,410,884.25/27,721.18
  6. Step 6: Final answer
    x = 20,901.38

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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.