Home / 55,615.83-83,434.68-20,555.79

Finding the Fourth Proportional to 55,615.83, 83,434.68 and 20,555.79

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Solution

The fourth proportional to 55,615.83, 83,434.68 and 20,555.79 is: 30,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,615.83 : 83,434.68 = 20,555.79 : x
  2. Step 2: Convert to fraction form
    55,615.83/83,434.68 = 20,555.79/x
  3. Step 3: Cross multiply
    55,615.83x = 83,434.68 × 20,555.79
  4. Step 4: Simplify right side
    55,615.83x = 1,715,065,760.80
  5. Step 5: Solve for x
    x = 1,715,065,760.80/55,615.83
  6. Step 6: Final answer
    x = 30,837.73

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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.