Home / 20,124.06-30,146.82-13,177.50

Finding the Fourth Proportional to 20,124.06, 30,146.82 and 13,177.50

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Solution

The fourth proportional to 20,124.06, 30,146.82 and 13,177.50 is: 19,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.06 : 30,146.82 = 13,177.50 : x
  2. Step 2: Convert to fraction form
    20,124.06/30,146.82 = 13,177.50/x
  3. Step 3: Cross multiply
    20,124.06x = 30,146.82 × 13,177.50
  4. Step 4: Simplify right side
    20,124.06x = 397,259,720.55
  5. Step 5: Solve for x
    x = 397,259,720.55/20,124.06
  6. Step 6: Final answer
    x = 19,740.54

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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.