Home / 19,923.12-29,844.81-12,021.30

Finding the Fourth Proportional to 19,923.12, 29,844.81 and 12,021.30

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Solution

The fourth proportional to 19,923.12, 29,844.81 and 12,021.30 is: 18,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,923.12 : 29,844.81 = 12,021.30 : x
  2. Step 2: Convert to fraction form
    19,923.12/29,844.81 = 12,021.30/x
  3. Step 3: Cross multiply
    19,923.12x = 29,844.81 × 12,021.30
  4. Step 4: Simplify right side
    19,923.12x = 358,773,414.45
  5. Step 5: Solve for x
    x = 358,773,414.45/19,923.12
  6. Step 6: Final answer
    x = 18,007.89

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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.