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Finding the Fourth Proportional to 34,781.25, 47,998.13 and 19,877.25

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Solution

The fourth proportional to 34,781.25, 47,998.13 and 19,877.25 is: 27,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,781.25 : 47,998.13 = 19,877.25 : x
  2. Step 2: Convert to fraction form
    34,781.25/47,998.13 = 19,877.25/x
  3. Step 3: Cross multiply
    34,781.25x = 47,998.13 × 19,877.25
  4. Step 4: Simplify right side
    34,781.25x = 954,070,730.16
  5. Step 5: Solve for x
    x = 954,070,730.16/34,781.25
  6. Step 6: Final answer
    x = 27,430.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.