Home / 21,586.88-32,383.56-9,901.28

Finding the Fourth Proportional to 21,586.88, 32,383.56 and 9,901.28

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Solution

The fourth proportional to 21,586.88, 32,383.56 and 9,901.28 is: 14,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.88 : 32,383.56 = 9,901.28 : x
  2. Step 2: Convert to fraction form
    21,586.88/32,383.56 = 9,901.28/x
  3. Step 3: Cross multiply
    21,586.88x = 32,383.56 × 9,901.28
  4. Step 4: Simplify right side
    21,586.88x = 320,638,694.96
  5. Step 5: Solve for x
    x = 320,638,694.96/21,586.88
  6. Step 6: Final answer
    x = 14,853.41

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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.