Home / 21,906.80-32,852.10-7,116.20

Finding the Fourth Proportional to 21,906.80, 32,852.10 and 7,116.20

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Solution

The fourth proportional to 21,906.80, 32,852.10 and 7,116.20 is: 10,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.80 : 32,852.10 = 7,116.20 : x
  2. Step 2: Convert to fraction form
    21,906.80/32,852.10 = 7,116.20/x
  3. Step 3: Cross multiply
    21,906.80x = 32,852.10 × 7,116.20
  4. Step 4: Simplify right side
    21,906.80x = 233,782,114.02
  5. Step 5: Solve for x
    x = 233,782,114.02/21,906.80
  6. Step 6: Final answer
    x = 10,671.67

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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.