Home / 39,558.54-54,590.38-21,653.36

Finding the Fourth Proportional to 39,558.54, 54,590.38 and 21,653.36

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Solution

The fourth proportional to 39,558.54, 54,590.38 and 21,653.36 is: 29,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.54 : 54,590.38 = 21,653.36 : x
  2. Step 2: Convert to fraction form
    39,558.54/54,590.38 = 21,653.36/x
  3. Step 3: Cross multiply
    39,558.54x = 54,590.38 × 21,653.36
  4. Step 4: Simplify right side
    39,558.54x = 1,182,065,150.68
  5. Step 5: Solve for x
    x = 1,182,065,150.68/39,558.54
  6. Step 6: Final answer
    x = 29,881.42

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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.