Home / 20,663.02-30,993.49-11,321.29

Finding the Fourth Proportional to 20,663.02, 30,993.49 and 11,321.29

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Solution

The fourth proportional to 20,663.02, 30,993.49 and 11,321.29 is: 16,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.02 : 30,993.49 = 11,321.29 : x
  2. Step 2: Convert to fraction form
    20,663.02/30,993.49 = 11,321.29/x
  3. Step 3: Cross multiply
    20,663.02x = 30,993.49 × 11,321.29
  4. Step 4: Simplify right side
    20,663.02x = 350,886,182.62
  5. Step 5: Solve for x
    x = 350,886,182.62/20,663.02
  6. Step 6: Final answer
    x = 16,981.36

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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.