Home / 25,804.91-38,532.66-20,480.20

Finding the Fourth Proportional to 25,804.91, 38,532.66 and 20,480.20

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Solution

The fourth proportional to 25,804.91, 38,532.66 and 20,480.20 is: 30,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,804.91 : 38,532.66 = 20,480.20 : x
  2. Step 2: Convert to fraction form
    25,804.91/38,532.66 = 20,480.20/x
  3. Step 3: Cross multiply
    25,804.91x = 38,532.66 × 20,480.20
  4. Step 4: Simplify right side
    25,804.91x = 789,156,583.33
  5. Step 5: Solve for x
    x = 789,156,583.33/25,804.91
  6. Step 6: Final answer
    x = 30,581.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.