Home / 20,617.18-30,928.79-7,466.47

Finding the Fourth Proportional to 20,617.18, 30,928.79 and 7,466.47

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Solution

The fourth proportional to 20,617.18, 30,928.79 and 7,466.47 is: 11,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.18 : 30,928.79 = 7,466.47 : x
  2. Step 2: Convert to fraction form
    20,617.18/30,928.79 = 7,466.47/x
  3. Step 3: Cross multiply
    20,617.18x = 30,928.79 × 7,466.47
  4. Step 4: Simplify right side
    20,617.18x = 230,928,824.02
  5. Step 5: Solve for x
    x = 230,928,824.02/20,617.18
  6. Step 6: Final answer
    x = 11,200.80

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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.