Home / 39,980.31-55,173.54-22,074.26

Finding the Fourth Proportional to 39,980.31, 55,173.54 and 22,074.26

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Solution

The fourth proportional to 39,980.31, 55,173.54 and 22,074.26 is: 30,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.31 : 55,173.54 = 22,074.26 : x
  2. Step 2: Convert to fraction form
    39,980.31/55,173.54 = 22,074.26/x
  3. Step 3: Cross multiply
    39,980.31x = 55,173.54 × 22,074.26
  4. Step 4: Simplify right side
    39,980.31x = 1,217,914,791.21
  5. Step 5: Solve for x
    x = 1,217,914,791.21/39,980.31
  6. Step 6: Final answer
    x = 30,462.87

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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.