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Finding the Fourth Proportional to 21,903.36, 32,847.84 and 8,752.32

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Solution

The fourth proportional to 21,903.36, 32,847.84 and 8,752.32 is: 13,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.36 : 32,847.84 = 8,752.32 : x
  2. Step 2: Convert to fraction form
    21,903.36/32,847.84 = 8,752.32/x
  3. Step 3: Cross multiply
    21,903.36x = 32,847.84 × 8,752.32
  4. Step 4: Simplify right side
    21,903.36x = 287,494,806.99
  5. Step 5: Solve for x
    x = 287,494,806.99/21,903.36
  6. Step 6: Final answer
    x = 13,125.60

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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.