Home / 33,312.72-45,948.99-21,390.54

Finding the Fourth Proportional to 33,312.72, 45,948.99 and 21,390.54

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Solution

The fourth proportional to 33,312.72, 45,948.99 and 21,390.54 is: 29,504.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,312.72 : 45,948.99 = 21,390.54 : x
  2. Step 2: Convert to fraction form
    33,312.72/45,948.99 = 21,390.54/x
  3. Step 3: Cross multiply
    33,312.72x = 45,948.99 × 21,390.54
  4. Step 4: Simplify right side
    33,312.72x = 982,873,708.55
  5. Step 5: Solve for x
    x = 982,873,708.55/33,312.72
  6. Step 6: Final answer
    x = 29,504.46

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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.