Home / 20,336.67-30,564.05-13,454.91

Finding the Fourth Proportional to 20,336.67, 30,564.05 and 13,454.91

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Solution

The fourth proportional to 20,336.67, 30,564.05 and 13,454.91 is: 20,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.67 : 30,564.05 = 13,454.91 : x
  2. Step 2: Convert to fraction form
    20,336.67/30,564.05 = 13,454.91/x
  3. Step 3: Cross multiply
    20,336.67x = 30,564.05 × 13,454.91
  4. Step 4: Simplify right side
    20,336.67x = 411,236,474.71
  5. Step 5: Solve for x
    x = 411,236,474.71/20,336.67
  6. Step 6: Final answer
    x = 20,221.43

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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.