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Finding the Fourth Proportional to 31,248, 46,872 and 9,360

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Solution

The fourth proportional to 31,248, 46,872 and 9,360 is: 14,040

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248 : 46,872 = 9,360 : x
  2. Step 2: Convert to fraction form
    31,248/46,872 = 9,360/x
  3. Step 3: Cross multiply
    31,248x = 46,872 × 9,360
  4. Step 4: Simplify right side
    31,248x = 438,721,920
  5. Step 5: Solve for x
    x = 438,721,920/31,248
  6. Step 6: Final answer
    x = 14,040

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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.