Home / 39,170.67-54,055.22-21,265.31

Finding the Fourth Proportional to 39,170.67, 54,055.22 and 21,265.31

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Solution

The fourth proportional to 39,170.67, 54,055.22 and 21,265.31 is: 29,345.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.67 : 54,055.22 = 21,265.31 : x
  2. Step 2: Convert to fraction form
    39,170.67/54,055.22 = 21,265.31/x
  3. Step 3: Cross multiply
    39,170.67x = 54,055.22 × 21,265.31
  4. Step 4: Simplify right side
    39,170.67x = 1,149,501,039.23
  5. Step 5: Solve for x
    x = 1,149,501,039.23/39,170.67
  6. Step 6: Final answer
    x = 29,345.96

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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.