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Finding the Fourth Proportional to 21,955.95, 32,951.07 and 8,816.94

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Solution

The fourth proportional to 21,955.95, 32,951.07 and 8,816.94 is: 13,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.95 : 32,951.07 = 8,816.94 : x
  2. Step 2: Convert to fraction form
    21,955.95/32,951.07 = 8,816.94/x
  3. Step 3: Cross multiply
    21,955.95x = 32,951.07 × 8,816.94
  4. Step 4: Simplify right side
    21,955.95x = 290,527,607.13
  5. Step 5: Solve for x
    x = 290,527,607.13/21,955.95
  6. Step 6: Final answer
    x = 13,232.29

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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.