Home / 39,171.07-54,162.39-38,538.01

Finding the Fourth Proportional to 39,171.07, 54,162.39 and 38,538.01

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Solution

The fourth proportional to 39,171.07, 54,162.39 and 38,538.01 is: 53,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.07 : 54,162.39 = 38,538.01 : x
  2. Step 2: Convert to fraction form
    39,171.07/54,162.39 = 38,538.01/x
  3. Step 3: Cross multiply
    39,171.07x = 54,162.39 × 38,538.01
  4. Step 4: Simplify right side
    39,171.07x = 2,087,310,727.44
  5. Step 5: Solve for x
    x = 2,087,310,727.44/39,171.07
  6. Step 6: Final answer
    x = 53,287.05

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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.