Home / 27,641.25-38,145.74-15,705.09

Finding the Fourth Proportional to 27,641.25, 38,145.74 and 15,705.09

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Solution

The fourth proportional to 27,641.25, 38,145.74 and 15,705.09 is: 21,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.25 : 38,145.74 = 15,705.09 : x
  2. Step 2: Convert to fraction form
    27,641.25/38,145.74 = 15,705.09/x
  3. Step 3: Cross multiply
    27,641.25x = 38,145.74 × 15,705.09
  4. Step 4: Simplify right side
    27,641.25x = 599,082,201.29
  5. Step 5: Solve for x
    x = 599,082,201.29/27,641.25
  6. Step 6: Final answer
    x = 21,673.48

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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.