Home / 20,030.91-27,640.22-11,077.19

Finding the Fourth Proportional to 20,030.91, 27,640.22 and 11,077.19

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Solution

The fourth proportional to 20,030.91, 27,640.22 and 11,077.19 is: 15,285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.91 : 27,640.22 = 11,077.19 : x
  2. Step 2: Convert to fraction form
    20,030.91/27,640.22 = 11,077.19/x
  3. Step 3: Cross multiply
    20,030.91x = 27,640.22 × 11,077.19
  4. Step 4: Simplify right side
    20,030.91x = 306,175,968.58
  5. Step 5: Solve for x
    x = 306,175,968.58/20,030.91
  6. Step 6: Final answer
    x = 15,285.18

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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.