Home / 21,841.07-30,120.69-16,189.89

Finding the Fourth Proportional to 21,841.07, 30,120.69 and 16,189.89

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Solution

The fourth proportional to 21,841.07, 30,120.69 and 16,189.89 is: 22,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,841.07 : 30,120.69 = 16,189.89 : x
  2. Step 2: Convert to fraction form
    21,841.07/30,120.69 = 16,189.89/x
  3. Step 3: Cross multiply
    21,841.07x = 30,120.69 × 16,189.89
  4. Step 4: Simplify right side
    21,841.07x = 487,650,701.95
  5. Step 5: Solve for x
    x = 487,650,701.95/21,841.07
  6. Step 6: Final answer
    x = 22,327.24

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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.