Home / 28,711.20-43,066.80-7,651.20

Finding the Fourth Proportional to 28,711.20, 43,066.80 and 7,651.20

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Solution

The fourth proportional to 28,711.20, 43,066.80 and 7,651.20 is: 11,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.20 : 43,066.80 = 7,651.20 : x
  2. Step 2: Convert to fraction form
    28,711.20/43,066.80 = 7,651.20/x
  3. Step 3: Cross multiply
    28,711.20x = 43,066.80 × 7,651.20
  4. Step 4: Simplify right side
    28,711.20x = 329,512,700.16
  5. Step 5: Solve for x
    x = 329,512,700.16/28,711.20
  6. Step 6: Final answer
    x = 11,476.80

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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.