Home / 33,220.90-45,833.34-21,290.82

Finding the Fourth Proportional to 33,220.90, 45,833.34 and 21,290.82

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Solution

The fourth proportional to 33,220.90, 45,833.34 and 21,290.82 is: 29,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.90 : 45,833.34 = 21,290.82 : x
  2. Step 2: Convert to fraction form
    33,220.90/45,833.34 = 21,290.82/x
  3. Step 3: Cross multiply
    33,220.90x = 45,833.34 × 21,290.82
  4. Step 4: Simplify right side
    33,220.90x = 975,829,299.90
  5. Step 5: Solve for x
    x = 975,829,299.90/33,220.90
  6. Step 6: Final answer
    x = 29,373.96

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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.