Home / 39,165.20-54,048.96-21,260.21

Finding the Fourth Proportional to 39,165.20, 54,048.96 and 21,260.21

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Solution

The fourth proportional to 39,165.20, 54,048.96 and 21,260.21 is: 29,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.20 : 54,048.96 = 21,260.21 : x
  2. Step 2: Convert to fraction form
    39,165.20/54,048.96 = 21,260.21/x
  3. Step 3: Cross multiply
    39,165.20x = 54,048.96 × 21,260.21
  4. Step 4: Simplify right side
    39,165.20x = 1,149,092,104.76
  5. Step 5: Solve for x
    x = 1,149,092,104.76/39,165.20
  6. Step 6: Final answer
    x = 29,339.62

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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.