Home / 19,680.24-29,529.08-10,318.02

Finding the Fourth Proportional to 19,680.24, 29,529.08 and 10,318.02

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Solution

The fourth proportional to 19,680.24, 29,529.08 and 10,318.02 is: 15,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.24 : 29,529.08 = 10,318.02 : x
  2. Step 2: Convert to fraction form
    19,680.24/29,529.08 = 10,318.02/x
  3. Step 3: Cross multiply
    19,680.24x = 29,529.08 × 10,318.02
  4. Step 4: Simplify right side
    19,680.24x = 304,681,638.02
  5. Step 5: Solve for x
    x = 304,681,638.02/19,680.24
  6. Step 6: Final answer
    x = 15,481.60

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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.