Home / 20,265.50-30,373.29-14,390.30

Finding the Fourth Proportional to 20,265.50, 30,373.29 and 14,390.30

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Solution

The fourth proportional to 20,265.50, 30,373.29 and 14,390.30 is: 21,567.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.50 : 30,373.29 = 14,390.30 : x
  2. Step 2: Convert to fraction form
    20,265.50/30,373.29 = 14,390.30/x
  3. Step 3: Cross multiply
    20,265.50x = 30,373.29 × 14,390.30
  4. Step 4: Simplify right side
    20,265.50x = 437,080,755.09
  5. Step 5: Solve for x
    x = 437,080,755.09/20,265.50
  6. Step 6: Final answer
    x = 21,567.73

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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.