Home / 38,455.02-53,067.78-21,458.79

Finding the Fourth Proportional to 38,455.02, 53,067.78 and 21,458.79

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Solution

The fourth proportional to 38,455.02, 53,067.78 and 21,458.79 is: 29,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.02 : 53,067.78 = 21,458.79 : x
  2. Step 2: Convert to fraction form
    38,455.02/53,067.78 = 21,458.79/x
  3. Step 3: Cross multiply
    38,455.02x = 53,067.78 × 21,458.79
  4. Step 4: Simplify right side
    38,455.02x = 1,138,770,346.79
  5. Step 5: Solve for x
    x = 1,138,770,346.79/38,455.02
  6. Step 6: Final answer
    x = 29,613.05

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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.