Home / 20,030.09-27,641.40-11,077.43

Finding the Fourth Proportional to 20,030.09, 27,641.40 and 11,077.43

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Solution

The fourth proportional to 20,030.09, 27,641.40 and 11,077.43 is: 15,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.09 : 27,641.40 = 11,077.43 : x
  2. Step 2: Convert to fraction form
    20,030.09/27,641.40 = 11,077.43/x
  3. Step 3: Cross multiply
    20,030.09x = 27,641.40 × 11,077.43
  4. Step 4: Simplify right side
    20,030.09x = 306,195,673.60
  5. Step 5: Solve for x
    x = 306,195,673.60/20,030.09
  6. Step 6: Final answer
    x = 15,286.78

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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.