Home / 20,286.65-27,995.42-11,088.19

Finding the Fourth Proportional to 20,286.65, 27,995.42 and 11,088.19

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Solution

The fourth proportional to 20,286.65, 27,995.42 and 11,088.19 is: 15,301.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.65 : 27,995.42 = 11,088.19 : x
  2. Step 2: Convert to fraction form
    20,286.65/27,995.42 = 11,088.19/x
  3. Step 3: Cross multiply
    20,286.65x = 27,995.42 × 11,088.19
  4. Step 4: Simplify right side
    20,286.65x = 310,418,598.80
  5. Step 5: Solve for x
    x = 310,418,598.80/20,286.65
  6. Step 6: Final answer
    x = 15,301.62

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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.