Home / 20,511.60-30,831.62-13,536.44

Finding the Fourth Proportional to 20,511.60, 30,831.62 and 13,536.44

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Solution

The fourth proportional to 20,511.60, 30,831.62 and 13,536.44 is: 20,347.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511.60 : 30,831.62 = 13,536.44 : x
  2. Step 2: Convert to fraction form
    20,511.60/30,831.62 = 13,536.44/x
  3. Step 3: Cross multiply
    20,511.60x = 30,831.62 × 13,536.44
  4. Step 4: Simplify right side
    20,511.60x = 417,350,264.17
  5. Step 5: Solve for x
    x = 417,350,264.17/20,511.60
  6. Step 6: Final answer
    x = 20,347.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.