Home / 55,276.71-82,889.15-20,191.83

Finding the Fourth Proportional to 55,276.71, 82,889.15 and 20,191.83

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Solution

The fourth proportional to 55,276.71, 82,889.15 and 20,191.83 is: 30,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.71 : 82,889.15 = 20,191.83 : x
  2. Step 2: Convert to fraction form
    55,276.71/82,889.15 = 20,191.83/x
  3. Step 3: Cross multiply
    55,276.71x = 82,889.15 × 20,191.83
  4. Step 4: Simplify right side
    55,276.71x = 1,673,683,524.69
  5. Step 5: Solve for x
    x = 1,673,683,524.69/55,276.71
  6. Step 6: Final answer
    x = 30,278.28

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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.