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Finding the Fourth Proportional to 29,320, 43,980 and 7,432

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Solution

The fourth proportional to 29,320, 43,980 and 7,432 is: 11,148

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320 : 43,980 = 7,432 : x
  2. Step 2: Convert to fraction form
    29,320/43,980 = 7,432/x
  3. Step 3: Cross multiply
    29,320x = 43,980 × 7,432
  4. Step 4: Simplify right side
    29,320x = 326,859,360
  5. Step 5: Solve for x
    x = 326,859,360/29,320
  6. Step 6: Final answer
    x = 11,148

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.