Home / 20,259.59-30,392.42-7,109.64

Finding the Fourth Proportional to 20,259.59, 30,392.42 and 7,109.64

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Solution

The fourth proportional to 20,259.59, 30,392.42 and 7,109.64 is: 10,665.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.59 : 30,392.42 = 7,109.64 : x
  2. Step 2: Convert to fraction form
    20,259.59/30,392.42 = 7,109.64/x
  3. Step 3: Cross multiply
    20,259.59x = 30,392.42 × 7,109.64
  4. Step 4: Simplify right side
    20,259.59x = 216,079,129.38
  5. Step 5: Solve for x
    x = 216,079,129.38/20,259.59
  6. Step 6: Final answer
    x = 10,665.53

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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.