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Finding the Fourth Proportional to 29,151, 40,228.44 and 15,903

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Solution

The fourth proportional to 29,151, 40,228.44 and 15,903 is: 21,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,151 : 40,228.44 = 15,903 : x
  2. Step 2: Convert to fraction form
    29,151/40,228.44 = 15,903/x
  3. Step 3: Cross multiply
    29,151x = 40,228.44 × 15,903
  4. Step 4: Simplify right side
    29,151x = 639,752,881.32
  5. Step 5: Solve for x
    x = 639,752,881.32/29,151
  6. Step 6: Final answer
    x = 21,946.17

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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.