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Finding the Fourth Proportional to 38,043, 52,499.52 and 21,276

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Solution

The fourth proportional to 38,043, 52,499.52 and 21,276 is: 29,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,043 : 52,499.52 = 21,276 : x
  2. Step 2: Convert to fraction form
    38,043/52,499.52 = 21,276/x
  3. Step 3: Cross multiply
    38,043x = 52,499.52 × 21,276
  4. Step 4: Simplify right side
    38,043x = 1,116,979,787.52
  5. Step 5: Solve for x
    x = 1,116,979,787.52/38,043
  6. Step 6: Final answer
    x = 29,360.98

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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.