Home / 20,649.22-30,970.04-9,401.90

Finding the Fourth Proportional to 20,649.22, 30,970.04 and 9,401.90

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Solution

The fourth proportional to 20,649.22, 30,970.04 and 9,401.90 is: 14,101.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.22 : 30,970.04 = 9,401.90 : x
  2. Step 2: Convert to fraction form
    20,649.22/30,970.04 = 9,401.90/x
  3. Step 3: Cross multiply
    20,649.22x = 30,970.04 × 9,401.90
  4. Step 4: Simplify right side
    20,649.22x = 291,177,017.22
  5. Step 5: Solve for x
    x = 291,177,017.22/20,649.22
  6. Step 6: Final answer
    x = 14,101.12

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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.