Home / 27,990.12-38,624.94-15,412.44

Finding the Fourth Proportional to 27,990.12, 38,624.94 and 15,412.44

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Solution

The fourth proportional to 27,990.12, 38,624.94 and 15,412.44 is: 21,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.12 : 38,624.94 = 15,412.44 : x
  2. Step 2: Convert to fraction form
    27,990.12/38,624.94 = 15,412.44/x
  3. Step 3: Cross multiply
    27,990.12x = 38,624.94 × 15,412.44
  4. Step 4: Simplify right side
    27,990.12x = 595,304,570.25
  5. Step 5: Solve for x
    x = 595,304,570.25/27,990.12
  6. Step 6: Final answer
    x = 21,268.38

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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.