Home / 21,560.20-32,389.32-18,607.84

Finding the Fourth Proportional to 21,560.20, 32,389.32 and 18,607.84

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Solution

The fourth proportional to 21,560.20, 32,389.32 and 18,607.84 is: 27,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.20 : 32,389.32 = 18,607.84 : x
  2. Step 2: Convert to fraction form
    21,560.20/32,389.32 = 18,607.84/x
  3. Step 3: Cross multiply
    21,560.20x = 32,389.32 × 18,607.84
  4. Step 4: Simplify right side
    21,560.20x = 602,695,284.27
  5. Step 5: Solve for x
    x = 602,695,284.27/21,560.20
  6. Step 6: Final answer
    x = 27,954.07

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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.