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Finding the Fourth Proportional to 36,007.40, 54,035.40 and 20,212.40

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Solution

The fourth proportional to 36,007.40, 54,035.40 and 20,212.40 is: 30,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,007.40 : 54,035.40 = 20,212.40 : x
  2. Step 2: Convert to fraction form
    36,007.40/54,035.40 = 20,212.40/x
  3. Step 3: Cross multiply
    36,007.40x = 54,035.40 × 20,212.40
  4. Step 4: Simplify right side
    36,007.40x = 1,092,185,118.96
  5. Step 5: Solve for x
    x = 1,092,185,118.96/36,007.40
  6. Step 6: Final answer
    x = 30,332.24

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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.