Home / 20,240.77-30,363.69-10,867.90

Finding the Fourth Proportional to 20,240.77, 30,363.69 and 10,867.90

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Solution

The fourth proportional to 20,240.77, 30,363.69 and 10,867.90 is: 16,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.77 : 30,363.69 = 10,867.90 : x
  2. Step 2: Convert to fraction form
    20,240.77/30,363.69 = 10,867.90/x
  3. Step 3: Cross multiply
    20,240.77x = 30,363.69 × 10,867.90
  4. Step 4: Simplify right side
    20,240.77x = 329,989,546.55
  5. Step 5: Solve for x
    x = 329,989,546.55/20,240.77
  6. Step 6: Final answer
    x = 16,303.21

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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.