Home / 39,165.56-54,049.03-21,260.60

Finding the Fourth Proportional to 39,165.56, 54,049.03 and 21,260.60

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Solution

The fourth proportional to 39,165.56, 54,049.03 and 21,260.60 is: 29,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.56 : 54,049.03 = 21,260.60 : x
  2. Step 2: Convert to fraction form
    39,165.56/54,049.03 = 21,260.60/x
  3. Step 3: Cross multiply
    39,165.56x = 54,049.03 × 21,260.60
  4. Step 4: Simplify right side
    39,165.56x = 1,149,114,483.82
  5. Step 5: Solve for x
    x = 1,149,114,483.82/39,165.56
  6. Step 6: Final answer
    x = 29,339.93

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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.