Home / 26,988.28-37,242.66-19,912.12

Finding the Fourth Proportional to 26,988.28, 37,242.66 and 19,912.12

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Solution

The fourth proportional to 26,988.28, 37,242.66 and 19,912.12 is: 27,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.28 : 37,242.66 = 19,912.12 : x
  2. Step 2: Convert to fraction form
    26,988.28/37,242.66 = 19,912.12/x
  3. Step 3: Cross multiply
    26,988.28x = 37,242.66 × 19,912.12
  4. Step 4: Simplify right side
    26,988.28x = 741,580,315.04
  5. Step 5: Solve for x
    x = 741,580,315.04/26,988.28
  6. Step 6: Final answer
    x = 27,477.87

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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.