Home / 27,120.92-37,394.98-21,739.06

Finding the Fourth Proportional to 27,120.92, 37,394.98 and 21,739.06

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Solution

The fourth proportional to 27,120.92, 37,394.98 and 21,739.06 is: 29,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.92 : 37,394.98 = 21,739.06 : x
  2. Step 2: Convert to fraction form
    27,120.92/37,394.98 = 21,739.06/x
  3. Step 3: Cross multiply
    27,120.92x = 37,394.98 × 21,739.06
  4. Step 4: Simplify right side
    27,120.92x = 812,931,713.92
  5. Step 5: Solve for x
    x = 812,931,713.92/27,120.92
  6. Step 6: Final answer
    x = 29,974.34

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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.