Home / 38,212.50-52,736.40-21,217.80

Finding the Fourth Proportional to 38,212.50, 52,736.40 and 21,217.80

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Solution

The fourth proportional to 38,212.50, 52,736.40 and 21,217.80 is: 29,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,212.50 : 52,736.40 = 21,217.80 : x
  2. Step 2: Convert to fraction form
    38,212.50/52,736.40 = 21,217.80/x
  3. Step 3: Cross multiply
    38,212.50x = 52,736.40 × 21,217.80
  4. Step 4: Simplify right side
    38,212.50x = 1,118,950,387.92
  5. Step 5: Solve for x
    x = 1,118,950,387.92/38,212.50
  6. Step 6: Final answer
    x = 29,282.31

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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.