Home / 19,905.26-27,473.67-15,589.76

Finding the Fourth Proportional to 19,905.26, 27,473.67 and 15,589.76

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Solution

The fourth proportional to 19,905.26, 27,473.67 and 15,589.76 is: 21,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.26 : 27,473.67 = 15,589.76 : x
  2. Step 2: Convert to fraction form
    19,905.26/27,473.67 = 15,589.76/x
  3. Step 3: Cross multiply
    19,905.26x = 27,473.67 × 15,589.76
  4. Step 4: Simplify right side
    19,905.26x = 428,307,784.25
  5. Step 5: Solve for x
    x = 428,307,784.25/19,905.26
  6. Step 6: Final answer
    x = 21,517.32

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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.