Home / 20,220.21-30,346.17-14,023.71

Finding the Fourth Proportional to 20,220.21, 30,346.17 and 14,023.71

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Solution

The fourth proportional to 20,220.21, 30,346.17 and 14,023.71 is: 21,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.21 : 30,346.17 = 14,023.71 : x
  2. Step 2: Convert to fraction form
    20,220.21/30,346.17 = 14,023.71/x
  3. Step 3: Cross multiply
    20,220.21x = 30,346.17 × 14,023.71
  4. Step 4: Simplify right side
    20,220.21x = 425,565,887.69
  5. Step 5: Solve for x
    x = 425,565,887.69/20,220.21
  6. Step 6: Final answer
    x = 21,046.56

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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.