Home / 39,648.48-54,771.84-31,680.24

Finding the Fourth Proportional to 39,648.48, 54,771.84 and 31,680.24

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Solution

The fourth proportional to 39,648.48, 54,771.84 and 31,680.24 is: 43,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,648.48 : 54,771.84 = 31,680.24 : x
  2. Step 2: Convert to fraction form
    39,648.48/54,771.84 = 31,680.24/x
  3. Step 3: Cross multiply
    39,648.48x = 54,771.84 × 31,680.24
  4. Step 4: Simplify right side
    39,648.48x = 1,735,185,036.44
  5. Step 5: Solve for x
    x = 1,735,185,036.44/39,648.48
  6. Step 6: Final answer
    x = 43,764.23

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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.