Home / 49,801.15-74,701.41-20,218.69

Finding the Fourth Proportional to 49,801.15, 74,701.41 and 20,218.69

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Solution

The fourth proportional to 49,801.15, 74,701.41 and 20,218.69 is: 30,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,801.15 : 74,701.41 = 20,218.69 : x
  2. Step 2: Convert to fraction form
    49,801.15/74,701.41 = 20,218.69/x
  3. Step 3: Cross multiply
    49,801.15x = 74,701.41 × 20,218.69
  4. Step 4: Simplify right side
    49,801.15x = 1,510,364,651.35
  5. Step 5: Solve for x
    x = 1,510,364,651.35/49,801.15
  6. Step 6: Final answer
    x = 30,327.91

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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.