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Finding the Fourth Proportional to 28,736.76, 43,108.14 and 7,960.26

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Solution

The fourth proportional to 28,736.76, 43,108.14 and 7,960.26 is: 11,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.76 : 43,108.14 = 7,960.26 : x
  2. Step 2: Convert to fraction form
    28,736.76/43,108.14 = 7,960.26/x
  3. Step 3: Cross multiply
    28,736.76x = 43,108.14 × 7,960.26
  4. Step 4: Simplify right side
    28,736.76x = 343,152,002.52
  5. Step 5: Solve for x
    x = 343,152,002.52/28,736.76
  6. Step 6: Final answer
    x = 11,941.22

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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.