Home / 20,474.71-30,648.44-11,091.40

Finding the Fourth Proportional to 20,474.71, 30,648.44 and 11,091.40

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Solution

The fourth proportional to 20,474.71, 30,648.44 and 11,091.40 is: 16,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.71 : 30,648.44 = 11,091.40 : x
  2. Step 2: Convert to fraction form
    20,474.71/30,648.44 = 11,091.40/x
  3. Step 3: Cross multiply
    20,474.71x = 30,648.44 × 11,091.40
  4. Step 4: Simplify right side
    20,474.71x = 339,934,058.52
  5. Step 5: Solve for x
    x = 339,934,058.52/20,474.71
  6. Step 6: Final answer
    x = 16,602.63

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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.