Home / 39,542.83-54,567.80-21,636.63

Finding the Fourth Proportional to 39,542.83, 54,567.80 and 21,636.63

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Solution

The fourth proportional to 39,542.83, 54,567.80 and 21,636.63 is: 29,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,542.83 : 54,567.80 = 21,636.63 : x
  2. Step 2: Convert to fraction form
    39,542.83/54,567.80 = 21,636.63/x
  3. Step 3: Cross multiply
    39,542.83x = 54,567.80 × 21,636.63
  4. Step 4: Simplify right side
    39,542.83x = 1,180,663,190.33
  5. Step 5: Solve for x
    x = 1,180,663,190.33/39,542.83
  6. Step 6: Final answer
    x = 29,857.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.