Home / 20,192.79-30,263.13-11,307.90

Finding the Fourth Proportional to 20,192.79, 30,263.13 and 11,307.90

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Solution

The fourth proportional to 20,192.79, 30,263.13 and 11,307.90 is: 16,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.79 : 30,263.13 = 11,307.90 : x
  2. Step 2: Convert to fraction form
    20,192.79/30,263.13 = 11,307.90/x
  3. Step 3: Cross multiply
    20,192.79x = 30,263.13 × 11,307.90
  4. Step 4: Simplify right side
    20,192.79x = 342,212,447.73
  5. Step 5: Solve for x
    x = 342,212,447.73/20,192.79
  6. Step 6: Final answer
    x = 16,947.26

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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.