Home / 20,042.80-27,656.58-11,089.06

Finding the Fourth Proportional to 20,042.80, 27,656.58 and 11,089.06

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Solution

The fourth proportional to 20,042.80, 27,656.58 and 11,089.06 is: 15,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.80 : 27,656.58 = 11,089.06 : x
  2. Step 2: Convert to fraction form
    20,042.80/27,656.58 = 11,089.06/x
  3. Step 3: Cross multiply
    20,042.80x = 27,656.58 × 11,089.06
  4. Step 4: Simplify right side
    20,042.80x = 306,685,475.01
  5. Step 5: Solve for x
    x = 306,685,475.01/20,042.80
  6. Step 6: Final answer
    x = 15,301.53

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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.