Home / 21,356.05-32,039.92-10,272.01

Finding the Fourth Proportional to 21,356.05, 32,039.92 and 10,272.01

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Solution

The fourth proportional to 21,356.05, 32,039.92 and 10,272.01 is: 15,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.05 : 32,039.92 = 10,272.01 : x
  2. Step 2: Convert to fraction form
    21,356.05/32,039.92 = 10,272.01/x
  3. Step 3: Cross multiply
    21,356.05x = 32,039.92 × 10,272.01
  4. Step 4: Simplify right side
    21,356.05x = 329,114,378.64
  5. Step 5: Solve for x
    x = 329,114,378.64/21,356.05
  6. Step 6: Final answer
    x = 15,410.83

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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.