Home / 20,159.75-30,174.93-10,776.31

Finding the Fourth Proportional to 20,159.75, 30,174.93 and 10,776.31

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Solution

The fourth proportional to 20,159.75, 30,174.93 and 10,776.31 is: 16,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.75 : 30,174.93 = 10,776.31 : x
  2. Step 2: Convert to fraction form
    20,159.75/30,174.93 = 10,776.31/x
  3. Step 3: Cross multiply
    20,159.75x = 30,174.93 × 10,776.31
  4. Step 4: Simplify right side
    20,159.75x = 325,174,324.47
  5. Step 5: Solve for x
    x = 325,174,324.47/20,159.75
  6. Step 6: Final answer
    x = 16,129.88

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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.