Home / 20,569.11-30,853.65-4,986.73

Finding the Fourth Proportional to 20,569.11, 30,853.65 and 4,986.73

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Solution

The fourth proportional to 20,569.11, 30,853.65 and 4,986.73 is: 7,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.11 : 30,853.65 = 4,986.73 : x
  2. Step 2: Convert to fraction form
    20,569.11/30,853.65 = 4,986.73/x
  3. Step 3: Cross multiply
    20,569.11x = 30,853.65 × 4,986.73
  4. Step 4: Simplify right side
    20,569.11x = 153,858,822.06
  5. Step 5: Solve for x
    x = 153,858,822.06/20,569.11
  6. Step 6: Final answer
    x = 7,480.09

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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.