Home / 38,208.85-52,734.44-21,218.56

Finding the Fourth Proportional to 38,208.85, 52,734.44 and 21,218.56

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Solution

The fourth proportional to 38,208.85, 52,734.44 and 21,218.56 is: 29,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.85 : 52,734.44 = 21,218.56 : x
  2. Step 2: Convert to fraction form
    38,208.85/52,734.44 = 21,218.56/x
  3. Step 3: Cross multiply
    38,208.85x = 52,734.44 × 21,218.56
  4. Step 4: Simplify right side
    38,208.85x = 1,118,948,800.42
  5. Step 5: Solve for x
    x = 1,118,948,800.42/38,208.85
  6. Step 6: Final answer
    x = 29,285.07

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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.