Home / 21,984.24-32,976.37-15,439.64

Finding the Fourth Proportional to 21,984.24, 32,976.37 and 15,439.64

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Solution

The fourth proportional to 21,984.24, 32,976.37 and 15,439.64 is: 23,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.24 : 32,976.37 = 15,439.64 : x
  2. Step 2: Convert to fraction form
    21,984.24/32,976.37 = 15,439.64/x
  3. Step 3: Cross multiply
    21,984.24x = 32,976.37 × 15,439.64
  4. Step 4: Simplify right side
    21,984.24x = 509,143,281.31
  5. Step 5: Solve for x
    x = 509,143,281.31/21,984.24
  6. Step 6: Final answer
    x = 23,159.47

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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.