Home / 20,536.29-28,339.34-11,583.63

Finding the Fourth Proportional to 20,536.29, 28,339.34 and 11,583.63

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Solution

The fourth proportional to 20,536.29, 28,339.34 and 11,583.63 is: 15,984.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.29 : 28,339.34 = 11,583.63 : x
  2. Step 2: Convert to fraction form
    20,536.29/28,339.34 = 11,583.63/x
  3. Step 3: Cross multiply
    20,536.29x = 28,339.34 × 11,583.63
  4. Step 4: Simplify right side
    20,536.29x = 328,272,371.09
  5. Step 5: Solve for x
    x = 328,272,371.09/20,536.29
  6. Step 6: Final answer
    x = 15,984.99

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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.