Home / 27,617.86-38,112.69-15,042.66

Finding the Fourth Proportional to 27,617.86, 38,112.69 and 15,042.66

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Solution

The fourth proportional to 27,617.86, 38,112.69 and 15,042.66 is: 20,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.86 : 38,112.69 = 15,042.66 : x
  2. Step 2: Convert to fraction form
    27,617.86/38,112.69 = 15,042.66/x
  3. Step 3: Cross multiply
    27,617.86x = 38,112.69 × 15,042.66
  4. Step 4: Simplify right side
    27,617.86x = 573,316,237.36
  5. Step 5: Solve for x
    x = 573,316,237.36/27,617.86
  6. Step 6: Final answer
    x = 20,758.89

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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.