Home / 39,458.64-54,450.56-21,550.08

Finding the Fourth Proportional to 39,458.64, 54,450.56 and 21,550.08

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Solution

The fourth proportional to 39,458.64, 54,450.56 and 21,550.08 is: 29,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.64 : 54,450.56 = 21,550.08 : x
  2. Step 2: Convert to fraction form
    39,458.64/54,450.56 = 21,550.08/x
  3. Step 3: Cross multiply
    39,458.64x = 54,450.56 × 21,550.08
  4. Step 4: Simplify right side
    39,458.64x = 1,173,413,924.04
  5. Step 5: Solve for x
    x = 1,173,413,924.04/39,458.64
  6. Step 6: Final answer
    x = 29,737.82

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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.