Home / 20,220.44-27,904.51-11,723.20

Finding the Fourth Proportional to 20,220.44, 27,904.51 and 11,723.20

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Solution

The fourth proportional to 20,220.44, 27,904.51 and 11,723.20 is: 16,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.44 : 27,904.51 = 11,723.20 : x
  2. Step 2: Convert to fraction form
    20,220.44/27,904.51 = 11,723.20/x
  3. Step 3: Cross multiply
    20,220.44x = 27,904.51 × 11,723.20
  4. Step 4: Simplify right side
    20,220.44x = 327,130,151.63
  5. Step 5: Solve for x
    x = 327,130,151.63/20,220.44
  6. Step 6: Final answer
    x = 16,178.19

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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.