Home / 20,526.46-30,740.82-13,107.94

Finding the Fourth Proportional to 20,526.46, 30,740.82 and 13,107.94

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Solution

The fourth proportional to 20,526.46, 30,740.82 and 13,107.94 is: 19,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.46 : 30,740.82 = 13,107.94 : x
  2. Step 2: Convert to fraction form
    20,526.46/30,740.82 = 13,107.94/x
  3. Step 3: Cross multiply
    20,526.46x = 30,740.82 × 13,107.94
  4. Step 4: Simplify right side
    20,526.46x = 402,948,824.11
  5. Step 5: Solve for x
    x = 402,948,824.11/20,526.46
  6. Step 6: Final answer
    x = 19,630.70

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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.