Home / 20,536.12-28,339.14-11,583.88

Finding the Fourth Proportional to 20,536.12, 28,339.14 and 11,583.88

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Solution

The fourth proportional to 20,536.12, 28,339.14 and 11,583.88 is: 15,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.12 : 28,339.14 = 11,583.88 : x
  2. Step 2: Convert to fraction form
    20,536.12/28,339.14 = 11,583.88/x
  3. Step 3: Cross multiply
    20,536.12x = 28,339.14 × 11,583.88
  4. Step 4: Simplify right side
    20,536.12x = 328,277,197.06
  5. Step 5: Solve for x
    x = 328,277,197.06/20,536.12
  6. Step 6: Final answer
    x = 15,985.36

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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.