Home / 28,197.20-42,295.80-23,272.40

Finding the Fourth Proportional to 28,197.20, 42,295.80 and 23,272.40

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Solution

The fourth proportional to 28,197.20, 42,295.80 and 23,272.40 is: 34,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.20 : 42,295.80 = 23,272.40 : x
  2. Step 2: Convert to fraction form
    28,197.20/42,295.80 = 23,272.40/x
  3. Step 3: Cross multiply
    28,197.20x = 42,295.80 × 23,272.40
  4. Step 4: Simplify right side
    28,197.20x = 984,324,775.92
  5. Step 5: Solve for x
    x = 984,324,775.92/28,197.20
  6. Step 6: Final answer
    x = 34,908.60

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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.