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Finding the Fourth Proportional to 21,787.32, 32,681.02 and 9,296.84

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Solution

The fourth proportional to 21,787.32, 32,681.02 and 9,296.84 is: 13,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.32 : 32,681.02 = 9,296.84 : x
  2. Step 2: Convert to fraction form
    21,787.32/32,681.02 = 9,296.84/x
  3. Step 3: Cross multiply
    21,787.32x = 32,681.02 × 9,296.84
  4. Step 4: Simplify right side
    21,787.32x = 303,830,213.98
  5. Step 5: Solve for x
    x = 303,830,213.98/21,787.32
  6. Step 6: Final answer
    x = 13,945.28

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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.