Home / 20,203.34-30,294.87-11,772.57

Finding the Fourth Proportional to 20,203.34, 30,294.87 and 11,772.57

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Solution

The fourth proportional to 20,203.34, 30,294.87 and 11,772.57 is: 17,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.34 : 30,294.87 = 11,772.57 : x
  2. Step 2: Convert to fraction form
    20,203.34/30,294.87 = 11,772.57/x
  3. Step 3: Cross multiply
    20,203.34x = 30,294.87 × 11,772.57
  4. Step 4: Simplify right side
    20,203.34x = 356,648,477.72
  5. Step 5: Solve for x
    x = 356,648,477.72/20,203.34
  6. Step 6: Final answer
    x = 17,652.95

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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.