Home / 19,517.74-26,912.19-15,539.02

Finding the Fourth Proportional to 19,517.74, 26,912.19 and 15,539.02

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Solution

The fourth proportional to 19,517.74, 26,912.19 and 15,539.02 is: 21,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.74 : 26,912.19 = 15,539.02 : x
  2. Step 2: Convert to fraction form
    19,517.74/26,912.19 = 15,539.02/x
  3. Step 3: Cross multiply
    19,517.74x = 26,912.19 × 15,539.02
  4. Step 4: Simplify right side
    19,517.74x = 418,189,058.65
  5. Step 5: Solve for x
    x = 418,189,058.65/19,517.74
  6. Step 6: Final answer
    x = 21,426.10

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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.