Home / 20,164.88-30,242.52-7,686.56

Finding the Fourth Proportional to 20,164.88, 30,242.52 and 7,686.56

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Solution

The fourth proportional to 20,164.88, 30,242.52 and 7,686.56 is: 11,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.88 : 30,242.52 = 7,686.56 : x
  2. Step 2: Convert to fraction form
    20,164.88/30,242.52 = 7,686.56/x
  3. Step 3: Cross multiply
    20,164.88x = 30,242.52 × 7,686.56
  4. Step 4: Simplify right side
    20,164.88x = 232,460,944.53
  5. Step 5: Solve for x
    x = 232,460,944.53/20,164.88
  6. Step 6: Final answer
    x = 11,528.01

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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.