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Finding the Fourth Proportional to 21,588.80, 32,384 and 7,546.08

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Solution

The fourth proportional to 21,588.80, 32,384 and 7,546.08 is: 11,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.80 : 32,384 = 7,546.08 : x
  2. Step 2: Convert to fraction form
    21,588.80/32,384 = 7,546.08/x
  3. Step 3: Cross multiply
    21,588.80x = 32,384 × 7,546.08
  4. Step 4: Simplify right side
    21,588.80x = 244,372,254.72
  5. Step 5: Solve for x
    x = 244,372,254.72/21,588.80
  6. Step 6: Final answer
    x = 11,319.40

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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.