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Finding the Fourth Proportional to 47,484.42, 71,250.93 and 19,425.21

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Solution

The fourth proportional to 47,484.42, 71,250.93 and 19,425.21 is: 29,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,484.42 : 71,250.93 = 19,425.21 : x
  2. Step 2: Convert to fraction form
    47,484.42/71,250.93 = 19,425.21/x
  3. Step 3: Cross multiply
    47,484.42x = 71,250.93 × 19,425.21
  4. Step 4: Simplify right side
    47,484.42x = 1,384,064,180.82
  5. Step 5: Solve for x
    x = 1,384,064,180.82/47,484.42
  6. Step 6: Final answer
    x = 29,147.75

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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.