Home / 23,180.72-34,782.78-9,150.80

Finding the Fourth Proportional to 23,180.72, 34,782.78 and 9,150.80

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Solution

The fourth proportional to 23,180.72, 34,782.78 and 9,150.80 is: 13,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.72 : 34,782.78 = 9,150.80 : x
  2. Step 2: Convert to fraction form
    23,180.72/34,782.78 = 9,150.80/x
  3. Step 3: Cross multiply
    23,180.72x = 34,782.78 × 9,150.80
  4. Step 4: Simplify right side
    23,180.72x = 318,290,263.22
  5. Step 5: Solve for x
    x = 318,290,263.22/23,180.72
  6. Step 6: Final answer
    x = 13,730.82

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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.