Home / 39,775.32-54,888.90-21,625.44

Finding the Fourth Proportional to 39,775.32, 54,888.90 and 21,625.44

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Solution

The fourth proportional to 39,775.32, 54,888.90 and 21,625.44 is: 29,842.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,775.32 : 54,888.90 = 21,625.44 : x
  2. Step 2: Convert to fraction form
    39,775.32/54,888.90 = 21,625.44/x
  3. Step 3: Cross multiply
    39,775.32x = 54,888.90 × 21,625.44
  4. Step 4: Simplify right side
    39,775.32x = 1,186,996,613.62
  5. Step 5: Solve for x
    x = 1,186,996,613.62/39,775.32
  6. Step 6: Final answer
    x = 29,842.54

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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.