Home / 18,683.20-28,030.20-5,535.82

Finding the Fourth Proportional to 18,683.20, 28,030.20 and 5,535.82

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Solution

The fourth proportional to 18,683.20, 28,030.20 and 5,535.82 is: 8,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.20 : 28,030.20 = 5,535.82 : x
  2. Step 2: Convert to fraction form
    18,683.20/28,030.20 = 5,535.82/x
  3. Step 3: Cross multiply
    18,683.20x = 28,030.20 × 5,535.82
  4. Step 4: Simplify right side
    18,683.20x = 155,170,141.76
  5. Step 5: Solve for x
    x = 155,170,141.76/18,683.20
  6. Step 6: Final answer
    x = 8,305.33

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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.