Home / 30,191.58-41,649.88-21,244.02

Finding the Fourth Proportional to 30,191.58, 41,649.88 and 21,244.02

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Solution

The fourth proportional to 30,191.58, 41,649.88 and 21,244.02 is: 29,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.58 : 41,649.88 = 21,244.02 : x
  2. Step 2: Convert to fraction form
    30,191.58/41,649.88 = 21,244.02/x
  3. Step 3: Cross multiply
    30,191.58x = 41,649.88 × 21,244.02
  4. Step 4: Simplify right side
    30,191.58x = 884,810,883.72
  5. Step 5: Solve for x
    x = 884,810,883.72/30,191.58
  6. Step 6: Final answer
    x = 29,306.54

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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.