Home / 21,968.45-32,952.66-8,820.81

Finding the Fourth Proportional to 21,968.45, 32,952.66 and 8,820.81

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Solution

The fourth proportional to 21,968.45, 32,952.66 and 8,820.81 is: 13,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.45 : 32,952.66 = 8,820.81 : x
  2. Step 2: Convert to fraction form
    21,968.45/32,952.66 = 8,820.81/x
  3. Step 3: Cross multiply
    21,968.45x = 32,952.66 × 8,820.81
  4. Step 4: Simplify right side
    21,968.45x = 290,669,152.85
  5. Step 5: Solve for x
    x = 290,669,152.85/21,968.45
  6. Step 6: Final answer
    x = 13,231.21

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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.