Home / 38,507.58-53,134.47-21,740.22

Finding the Fourth Proportional to 38,507.58, 53,134.47 and 21,740.22

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Solution

The fourth proportional to 38,507.58, 53,134.47 and 21,740.22 is: 29,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,507.58 : 53,134.47 = 21,740.22 : x
  2. Step 2: Convert to fraction form
    38,507.58/53,134.47 = 21,740.22/x
  3. Step 3: Cross multiply
    38,507.58x = 53,134.47 × 21,740.22
  4. Step 4: Simplify right side
    38,507.58x = 1,155,155,067.38
  5. Step 5: Solve for x
    x = 1,155,155,067.38/38,507.58
  6. Step 6: Final answer
    x = 29,998.12

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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.