Home / 38,221.60-52,749.12-21,229.12

Finding the Fourth Proportional to 38,221.60, 52,749.12 and 21,229.12

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Solution

The fourth proportional to 38,221.60, 52,749.12 and 21,229.12 is: 29,298.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,221.60 : 52,749.12 = 21,229.12 : x
  2. Step 2: Convert to fraction form
    38,221.60/52,749.12 = 21,229.12/x
  3. Step 3: Cross multiply
    38,221.60x = 52,749.12 × 21,229.12
  4. Step 4: Simplify right side
    38,221.60x = 1,119,817,398.37
  5. Step 5: Solve for x
    x = 1,119,817,398.37/38,221.60
  6. Step 6: Final answer
    x = 29,298.03

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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.