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Finding the Fourth Proportional to 20,566.91, 30,847.93 and 5,777.12

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Solution

The fourth proportional to 20,566.91, 30,847.93 and 5,777.12 is: 8,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.91 : 30,847.93 = 5,777.12 : x
  2. Step 2: Convert to fraction form
    20,566.91/30,847.93 = 5,777.12/x
  3. Step 3: Cross multiply
    20,566.91x = 30,847.93 × 5,777.12
  4. Step 4: Simplify right side
    20,566.91x = 178,212,256.04
  5. Step 5: Solve for x
    x = 178,212,256.04/20,566.91
  6. Step 6: Final answer
    x = 8,665.00

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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.