Home / 21,841.76-30,182.52-17,861.36

Finding the Fourth Proportional to 21,841.76, 30,182.52 and 17,861.36

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Solution

The fourth proportional to 21,841.76, 30,182.52 and 17,861.36 is: 24,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,841.76 : 30,182.52 = 17,861.36 : x
  2. Step 2: Convert to fraction form
    21,841.76/30,182.52 = 17,861.36/x
  3. Step 3: Cross multiply
    21,841.76x = 30,182.52 × 17,861.36
  4. Step 4: Simplify right side
    21,841.76x = 539,100,855.43
  5. Step 5: Solve for x
    x = 539,100,855.43/21,841.76
  6. Step 6: Final answer
    x = 24,682.12

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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.