Home / 20,365.80-30,548.70-17,085.30

Finding the Fourth Proportional to 20,365.80, 30,548.70 and 17,085.30

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Solution

The fourth proportional to 20,365.80, 30,548.70 and 17,085.30 is: 25,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.80 : 30,548.70 = 17,085.30 : x
  2. Step 2: Convert to fraction form
    20,365.80/30,548.70 = 17,085.30/x
  3. Step 3: Cross multiply
    20,365.80x = 30,548.70 × 17,085.30
  4. Step 4: Simplify right side
    20,365.80x = 521,933,704.11
  5. Step 5: Solve for x
    x = 521,933,704.11/20,365.80
  6. Step 6: Final answer
    x = 25,627.95

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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.