Home / 25,279.82-37,890.21-19,019.72

Finding the Fourth Proportional to 25,279.82, 37,890.21 and 19,019.72

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Solution

The fourth proportional to 25,279.82, 37,890.21 and 19,019.72 is: 28,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,279.82 : 37,890.21 = 19,019.72 : x
  2. Step 2: Convert to fraction form
    25,279.82/37,890.21 = 19,019.72/x
  3. Step 3: Cross multiply
    25,279.82x = 37,890.21 × 19,019.72
  4. Step 4: Simplify right side
    25,279.82x = 720,661,184.94
  5. Step 5: Solve for x
    x = 720,661,184.94/25,279.82
  6. Step 6: Final answer
    x = 28,507.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.