Home / 39,577.32-54,616.50-21,427.92

Finding the Fourth Proportional to 39,577.32, 54,616.50 and 21,427.92

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Solution

The fourth proportional to 39,577.32, 54,616.50 and 21,427.92 is: 29,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,577.32 : 54,616.50 = 21,427.92 : x
  2. Step 2: Convert to fraction form
    39,577.32/54,616.50 = 21,427.92/x
  3. Step 3: Cross multiply
    39,577.32x = 54,616.50 × 21,427.92
  4. Step 4: Simplify right side
    39,577.32x = 1,170,317,992.68
  5. Step 5: Solve for x
    x = 1,170,317,992.68/39,577.32
  6. Step 6: Final answer
    x = 29,570.42

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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.