Home / 20,397.44-30,597.68-10,530.56

Finding the Fourth Proportional to 20,397.44, 30,597.68 and 10,530.56

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Solution

The fourth proportional to 20,397.44, 30,597.68 and 10,530.56 is: 15,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.44 : 30,597.68 = 10,530.56 : x
  2. Step 2: Convert to fraction form
    20,397.44/30,597.68 = 10,530.56/x
  3. Step 3: Cross multiply
    20,397.44x = 30,597.68 × 10,530.56
  4. Step 4: Simplify right side
    20,397.44x = 322,210,705.10
  5. Step 5: Solve for x
    x = 322,210,705.10/20,397.44
  6. Step 6: Final answer
    x = 15,796.62

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1.5x scale

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.