Home / 27,769.72-38,282.35-19,798.10

Finding the Fourth Proportional to 27,769.72, 38,282.35 and 19,798.10

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Solution

The fourth proportional to 27,769.72, 38,282.35 and 19,798.10 is: 27,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.72 : 38,282.35 = 19,798.10 : x
  2. Step 2: Convert to fraction form
    27,769.72/38,282.35 = 19,798.10/x
  3. Step 3: Cross multiply
    27,769.72x = 38,282.35 × 19,798.10
  4. Step 4: Simplify right side
    27,769.72x = 757,917,839.75
  5. Step 5: Solve for x
    x = 757,917,839.75/27,769.72
  6. Step 6: Final answer
    x = 27,292.96

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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.