Home / 30,923.28-42,662.49-18,177.02

Finding the Fourth Proportional to 30,923.28, 42,662.49 and 18,177.02

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Solution

The fourth proportional to 30,923.28, 42,662.49 and 18,177.02 is: 25,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,923.28 : 42,662.49 = 18,177.02 : x
  2. Step 2: Convert to fraction form
    30,923.28/42,662.49 = 18,177.02/x
  3. Step 3: Cross multiply
    30,923.28x = 42,662.49 × 18,177.02
  4. Step 4: Simplify right side
    30,923.28x = 775,476,720.67
  5. Step 5: Solve for x
    x = 775,476,720.67/30,923.28
  6. Step 6: Final answer
    x = 25,077.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.