Home / 47,698.83-71,549.64-12,638.49

Finding the Fourth Proportional to 47,698.83, 71,549.64 and 12,638.49

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Solution

The fourth proportional to 47,698.83, 71,549.64 and 12,638.49 is: 18,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,698.83 : 71,549.64 = 12,638.49 : x
  2. Step 2: Convert to fraction form
    47,698.83/71,549.64 = 12,638.49/x
  3. Step 3: Cross multiply
    47,698.83x = 71,549.64 × 12,638.49
  4. Step 4: Simplify right side
    47,698.83x = 904,279,409.64
  5. Step 5: Solve for x
    x = 904,279,409.64/47,698.83
  6. Step 6: Final answer
    x = 18,958.10

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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.