Home / 19,839.80-27,379.01-10,888.29

Finding the Fourth Proportional to 19,839.80, 27,379.01 and 10,888.29

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Solution

The fourth proportional to 19,839.80, 27,379.01 and 10,888.29 is: 15,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.80 : 27,379.01 = 10,888.29 : x
  2. Step 2: Convert to fraction form
    19,839.80/27,379.01 = 10,888.29/x
  3. Step 3: Cross multiply
    19,839.80x = 27,379.01 × 10,888.29
  4. Step 4: Simplify right side
    19,839.80x = 298,110,628.01
  5. Step 5: Solve for x
    x = 298,110,628.01/19,839.80
  6. Step 6: Final answer
    x = 15,025.89

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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.