Home / 20,007.88-27,531.19-19,399.16

Finding the Fourth Proportional to 20,007.88, 27,531.19 and 19,399.16

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Solution

The fourth proportional to 20,007.88, 27,531.19 and 19,399.16 is: 26,693.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.88 : 27,531.19 = 19,399.16 : x
  2. Step 2: Convert to fraction form
    20,007.88/27,531.19 = 19,399.16/x
  3. Step 3: Cross multiply
    20,007.88x = 27,531.19 × 19,399.16
  4. Step 4: Simplify right side
    20,007.88x = 534,082,052.88
  5. Step 5: Solve for x
    x = 534,082,052.88/20,007.88
  6. Step 6: Final answer
    x = 26,693.59

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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.