Home / 20,620.38-30,946.12-15,088

Finding the Fourth Proportional to 20,620.38, 30,946.12 and 15,088

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Solution

The fourth proportional to 20,620.38, 30,946.12 and 15,088 is: 22,643.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.38 : 30,946.12 = 15,088 : x
  2. Step 2: Convert to fraction form
    20,620.38/30,946.12 = 15,088/x
  3. Step 3: Cross multiply
    20,620.38x = 30,946.12 × 15,088
  4. Step 4: Simplify right side
    20,620.38x = 466,915,058.56
  5. Step 5: Solve for x
    x = 466,915,058.56/20,620.38
  6. Step 6: Final answer
    x = 22,643.38

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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.