Home / 20,160.39-30,224.46-10,159.74

Finding the Fourth Proportional to 20,160.39, 30,224.46 and 10,159.74

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Solution

The fourth proportional to 20,160.39, 30,224.46 and 10,159.74 is: 15,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.39 : 30,224.46 = 10,159.74 : x
  2. Step 2: Convert to fraction form
    20,160.39/30,224.46 = 10,159.74/x
  3. Step 3: Cross multiply
    20,160.39x = 30,224.46 × 10,159.74
  4. Step 4: Simplify right side
    20,160.39x = 307,072,655.24
  5. Step 5: Solve for x
    x = 307,072,655.24/20,160.39
  6. Step 6: Final answer
    x = 15,231.48

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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.