Home / 21,765.17-32,604.01-11,355.05

Finding the Fourth Proportional to 21,765.17, 32,604.01 and 11,355.05

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Solution

The fourth proportional to 21,765.17, 32,604.01 and 11,355.05 is: 17,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.17 : 32,604.01 = 11,355.05 : x
  2. Step 2: Convert to fraction form
    21,765.17/32,604.01 = 11,355.05/x
  3. Step 3: Cross multiply
    21,765.17x = 32,604.01 × 11,355.05
  4. Step 4: Simplify right side
    21,765.17x = 370,220,137.19
  5. Step 5: Solve for x
    x = 370,220,137.19/21,765.17
  6. Step 6: Final answer
    x = 17,009.75

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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.