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Finding the Fourth Proportional to 28,892.77, 43,265.15 and 19,995.77

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Solution

The fourth proportional to 28,892.77, 43,265.15 and 19,995.77 is: 29,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.77 : 43,265.15 = 19,995.77 : x
  2. Step 2: Convert to fraction form
    28,892.77/43,265.15 = 19,995.77/x
  3. Step 3: Cross multiply
    28,892.77x = 43,265.15 × 19,995.77
  4. Step 4: Simplify right side
    28,892.77x = 865,120,146.57
  5. Step 5: Solve for x
    x = 865,120,146.57/28,892.77
  6. Step 6: Final answer
    x = 29,942.45

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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.