Home / 27,872.47-38,464.67-15,126.18

Finding the Fourth Proportional to 27,872.47, 38,464.67 and 15,126.18

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Solution

The fourth proportional to 27,872.47, 38,464.67 and 15,126.18 is: 20,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.47 : 38,464.67 = 15,126.18 : x
  2. Step 2: Convert to fraction form
    27,872.47/38,464.67 = 15,126.18/x
  3. Step 3: Cross multiply
    27,872.47x = 38,464.67 × 15,126.18
  4. Step 4: Simplify right side
    27,872.47x = 581,823,415.63
  5. Step 5: Solve for x
    x = 581,823,415.63/27,872.47
  6. Step 6: Final answer
    x = 20,874.48

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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.