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Finding the Fourth Proportional to 19,548.78, 29,328.12 and 5,697.78

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Solution

The fourth proportional to 19,548.78, 29,328.12 and 5,697.78 is: 8,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,548.78 : 29,328.12 = 5,697.78 : x
  2. Step 2: Convert to fraction form
    19,548.78/29,328.12 = 5,697.78/x
  3. Step 3: Cross multiply
    19,548.78x = 29,328.12 × 5,697.78
  4. Step 4: Simplify right side
    19,548.78x = 167,105,175.57
  5. Step 5: Solve for x
    x = 167,105,175.57/19,548.78
  6. Step 6: Final answer
    x = 8,548.11

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1.5x scale

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.