Home / 39,920.64-55,089.52-22,015.24

Finding the Fourth Proportional to 39,920.64, 55,089.52 and 22,015.24

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Solution

The fourth proportional to 39,920.64, 55,089.52 and 22,015.24 is: 30,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.64 : 55,089.52 = 22,015.24 : x
  2. Step 2: Convert to fraction form
    39,920.64/55,089.52 = 22,015.24/x
  3. Step 3: Cross multiply
    39,920.64x = 55,089.52 × 22,015.24
  4. Step 4: Simplify right side
    39,920.64x = 1,212,809,004.28
  5. Step 5: Solve for x
    x = 1,212,809,004.28/39,920.64
  6. Step 6: Final answer
    x = 30,380.50

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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.