Home / 20,190.51-30,292.65-6,150.78

Finding the Fourth Proportional to 20,190.51, 30,292.65 and 6,150.78

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Solution

The fourth proportional to 20,190.51, 30,292.65 and 6,150.78 is: 9,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.51 : 30,292.65 = 6,150.78 : x
  2. Step 2: Convert to fraction form
    20,190.51/30,292.65 = 6,150.78/x
  3. Step 3: Cross multiply
    20,190.51x = 30,292.65 × 6,150.78
  4. Step 4: Simplify right side
    20,190.51x = 186,323,425.77
  5. Step 5: Solve for x
    x = 186,323,425.77/20,190.51
  6. Step 6: Final answer
    x = 9,228.27

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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.