Home / 20,292.56-30,362.28-11,977.10

Finding the Fourth Proportional to 20,292.56, 30,362.28 and 11,977.10

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Solution

The fourth proportional to 20,292.56, 30,362.28 and 11,977.10 is: 17,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.56 : 30,362.28 = 11,977.10 : x
  2. Step 2: Convert to fraction form
    20,292.56/30,362.28 = 11,977.10/x
  3. Step 3: Cross multiply
    20,292.56x = 30,362.28 × 11,977.10
  4. Step 4: Simplify right side
    20,292.56x = 363,652,063.79
  5. Step 5: Solve for x
    x = 363,652,063.79/20,292.56
  6. Step 6: Final answer
    x = 17,920.46

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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.