Home / 20,536.56-28,339.88-11,583.72

Finding the Fourth Proportional to 20,536.56, 28,339.88 and 11,583.72

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Solution

The fourth proportional to 20,536.56, 28,339.88 and 11,583.72 is: 15,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.56 : 28,339.88 = 11,583.72 : x
  2. Step 2: Convert to fraction form
    20,536.56/28,339.88 = 11,583.72/x
  3. Step 3: Cross multiply
    20,536.56x = 28,339.88 × 11,583.72
  4. Step 4: Simplify right side
    20,536.56x = 328,281,234.75
  5. Step 5: Solve for x
    x = 328,281,234.75/20,536.56
  6. Step 6: Final answer
    x = 15,985.21

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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.