Home / 17,821.14-24,536.88-15,695.20

Finding the Fourth Proportional to 17,821.14, 24,536.88 and 15,695.20

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Solution

The fourth proportional to 17,821.14, 24,536.88 and 15,695.20 is: 21,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,821.14 : 24,536.88 = 15,695.20 : x
  2. Step 2: Convert to fraction form
    17,821.14/24,536.88 = 15,695.20/x
  3. Step 3: Cross multiply
    17,821.14x = 24,536.88 × 15,695.20
  4. Step 4: Simplify right side
    17,821.14x = 385,111,238.98
  5. Step 5: Solve for x
    x = 385,111,238.98/17,821.14
  6. Step 6: Final answer
    x = 21,609.80

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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.