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Finding the Fourth Proportional to 29,437.92, 40,608 and 19,368

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Solution

The fourth proportional to 29,437.92, 40,608 and 19,368 is: 26,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,437.92 : 40,608 = 19,368 : x
  2. Step 2: Convert to fraction form
    29,437.92/40,608 = 19,368/x
  3. Step 3: Cross multiply
    29,437.92x = 40,608 × 19,368
  4. Step 4: Simplify right side
    29,437.92x = 786,495,744
  5. Step 5: Solve for x
    x = 786,495,744/29,437.92
  6. Step 6: Final answer
    x = 26,717.10

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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.