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Finding the Fourth Proportional to 34,128, 51,192.54 and 9,504

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Solution

The fourth proportional to 34,128, 51,192.54 and 9,504 is: 14,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128 : 51,192.54 = 9,504 : x
  2. Step 2: Convert to fraction form
    34,128/51,192.54 = 9,504/x
  3. Step 3: Cross multiply
    34,128x = 51,192.54 × 9,504
  4. Step 4: Simplify right side
    34,128x = 486,533,900.16
  5. Step 5: Solve for x
    x = 486,533,900.16/34,128
  6. Step 6: Final answer
    x = 14,256.15

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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.