Home / 39,655.32-54,724.60-21,750.44

Finding the Fourth Proportional to 39,655.32, 54,724.60 and 21,750.44

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Solution

The fourth proportional to 39,655.32, 54,724.60 and 21,750.44 is: 30,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,655.32 : 54,724.60 = 21,750.44 : x
  2. Step 2: Convert to fraction form
    39,655.32/54,724.60 = 21,750.44/x
  3. Step 3: Cross multiply
    39,655.32x = 54,724.60 × 21,750.44
  4. Step 4: Simplify right side
    39,655.32x = 1,190,284,128.82
  5. Step 5: Solve for x
    x = 1,190,284,128.82/39,655.32
  6. Step 6: Final answer
    x = 30,015.75

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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.