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Finding the Fourth Proportional to 47,424, 71,136 and 14,592

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Solution

The fourth proportional to 47,424, 71,136 and 14,592 is: 21,888

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,424 : 71,136 = 14,592 : x
  2. Step 2: Convert to fraction form
    47,424/71,136 = 14,592/x
  3. Step 3: Cross multiply
    47,424x = 71,136 × 14,592
  4. Step 4: Simplify right side
    47,424x = 1,038,016,512
  5. Step 5: Solve for x
    x = 1,038,016,512/47,424
  6. Step 6: Final answer
    x = 21,888

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Why These Related Problems?

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