Home / 39,203.80-54,101.52-21,298.96

Finding the Fourth Proportional to 39,203.80, 54,101.52 and 21,298.96

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Solution

The fourth proportional to 39,203.80, 54,101.52 and 21,298.96 is: 29,392.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,203.80 : 54,101.52 = 21,298.96 : x
  2. Step 2: Convert to fraction form
    39,203.80/54,101.52 = 21,298.96/x
  3. Step 3: Cross multiply
    39,203.80x = 54,101.52 × 21,298.96
  4. Step 4: Simplify right side
    39,203.80x = 1,152,306,110.42
  5. Step 5: Solve for x
    x = 1,152,306,110.42/39,203.80
  6. Step 6: Final answer
    x = 29,392.71

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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.