Home / 39,918.93-55,087.34-22,015.59

Finding the Fourth Proportional to 39,918.93, 55,087.34 and 22,015.59

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Solution

The fourth proportional to 39,918.93, 55,087.34 and 22,015.59 is: 30,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.93 : 55,087.34 = 22,015.59 : x
  2. Step 2: Convert to fraction form
    39,918.93/55,087.34 = 22,015.59/x
  3. Step 3: Cross multiply
    39,918.93x = 55,087.34 × 22,015.59
  4. Step 4: Simplify right side
    39,918.93x = 1,212,780,181.55
  5. Step 5: Solve for x
    x = 1,212,780,181.55/39,918.93
  6. Step 6: Final answer
    x = 30,381.08

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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.