Home / 20,553.12-30,649.23-20,366.01

Finding the Fourth Proportional to 20,553.12, 30,649.23 and 20,366.01

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Solution

The fourth proportional to 20,553.12, 30,649.23 and 20,366.01 is: 30,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.12 : 30,649.23 = 20,366.01 : x
  2. Step 2: Convert to fraction form
    20,553.12/30,649.23 = 20,366.01/x
  3. Step 3: Cross multiply
    20,553.12x = 30,649.23 × 20,366.01
  4. Step 4: Simplify right side
    20,553.12x = 624,202,524.67
  5. Step 5: Solve for x
    x = 624,202,524.67/20,553.12
  6. Step 6: Final answer
    x = 30,370.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.