Home / 21,453.87-32,180.81-5,871.49

Finding the Fourth Proportional to 21,453.87, 32,180.81 and 5,871.49

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Solution

The fourth proportional to 21,453.87, 32,180.81 and 5,871.49 is: 8,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.87 : 32,180.81 = 5,871.49 : x
  2. Step 2: Convert to fraction form
    21,453.87/32,180.81 = 5,871.49/x
  3. Step 3: Cross multiply
    21,453.87x = 32,180.81 × 5,871.49
  4. Step 4: Simplify right side
    21,453.87x = 188,949,304.11
  5. Step 5: Solve for x
    x = 188,949,304.11/21,453.87
  6. Step 6: Final answer
    x = 8,807.24

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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.