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Finding the Fourth Proportional to 21,928.32, 32,892.03 and 8,777.16

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Solution

The fourth proportional to 21,928.32, 32,892.03 and 8,777.16 is: 13,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.32 : 32,892.03 = 8,777.16 : x
  2. Step 2: Convert to fraction form
    21,928.32/32,892.03 = 8,777.16/x
  3. Step 3: Cross multiply
    21,928.32x = 32,892.03 × 8,777.16
  4. Step 4: Simplify right side
    21,928.32x = 288,698,610.03
  5. Step 5: Solve for x
    x = 288,698,610.03/21,928.32
  6. Step 6: Final answer
    x = 13,165.56

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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.