Home / 20,031.06-27,641.73-11,077.98

Finding the Fourth Proportional to 20,031.06, 27,641.73 and 11,077.98

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Solution

The fourth proportional to 20,031.06, 27,641.73 and 11,077.98 is: 15,286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.06 : 27,641.73 = 11,077.98 : x
  2. Step 2: Convert to fraction form
    20,031.06/27,641.73 = 11,077.98/x
  3. Step 3: Cross multiply
    20,031.06x = 27,641.73 × 11,077.98
  4. Step 4: Simplify right side
    20,031.06x = 306,214,532.11
  5. Step 5: Solve for x
    x = 306,214,532.11/20,031.06
  6. Step 6: Final answer
    x = 15,286.99

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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.