Home / 21,847.80-32,765.30-7,806.20

Finding the Fourth Proportional to 21,847.80, 32,765.30 and 7,806.20

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Solution

The fourth proportional to 21,847.80, 32,765.30 and 7,806.20 is: 11,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,847.80 : 32,765.30 = 7,806.20 : x
  2. Step 2: Convert to fraction form
    21,847.80/32,765.30 = 7,806.20/x
  3. Step 3: Cross multiply
    21,847.80x = 32,765.30 × 7,806.20
  4. Step 4: Simplify right side
    21,847.80x = 255,772,484.86
  5. Step 5: Solve for x
    x = 255,772,484.86/21,847.80
  6. Step 6: Final answer
    x = 11,707.01

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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.