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Finding the Fourth Proportional to 39,641.63, 59,462.44 and 11,939.63

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Solution

The fourth proportional to 39,641.63, 59,462.44 and 11,939.63 is: 17,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.63 : 59,462.44 = 11,939.63 : x
  2. Step 2: Convert to fraction form
    39,641.63/59,462.44 = 11,939.63/x
  3. Step 3: Cross multiply
    39,641.63x = 59,462.44 × 11,939.63
  4. Step 4: Simplify right side
    39,641.63x = 709,959,205.34
  5. Step 5: Solve for x
    x = 709,959,205.34/39,641.63
  6. Step 6: Final answer
    x = 17,909.44

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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.