Home / 20,314.80-30,433.32-13,708.44

Finding the Fourth Proportional to 20,314.80, 30,433.32 and 13,708.44

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Solution

The fourth proportional to 20,314.80, 30,433.32 and 13,708.44 is: 20,536.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.80 : 30,433.32 = 13,708.44 : x
  2. Step 2: Convert to fraction form
    20,314.80/30,433.32 = 13,708.44/x
  3. Step 3: Cross multiply
    20,314.80x = 30,433.32 × 13,708.44
  4. Step 4: Simplify right side
    20,314.80x = 417,193,341.22
  5. Step 5: Solve for x
    x = 417,193,341.22/20,314.80
  6. Step 6: Final answer
    x = 20,536.42

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1.5x scale

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.