Home / 13,620.59-20,429.33-4,734.21

Finding the Fourth Proportional to 13,620.59, 20,429.33 and 4,734.21

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Solution

The fourth proportional to 13,620.59, 20,429.33 and 4,734.21 is: 7,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.59 : 20,429.33 = 4,734.21 : x
  2. Step 2: Convert to fraction form
    13,620.59/20,429.33 = 4,734.21/x
  3. Step 3: Cross multiply
    13,620.59x = 20,429.33 × 4,734.21
  4. Step 4: Simplify right side
    13,620.59x = 96,716,714.71
  5. Step 5: Solve for x
    x = 96,716,714.71/13,620.59
  6. Step 6: Final answer
    x = 7,100.78

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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.