Home / 42,221.12-63,330.24-20,045.12

Finding the Fourth Proportional to 42,221.12, 63,330.24 and 20,045.12

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Solution

The fourth proportional to 42,221.12, 63,330.24 and 20,045.12 is: 30,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,221.12 : 63,330.24 = 20,045.12 : x
  2. Step 2: Convert to fraction form
    42,221.12/63,330.24 = 20,045.12/x
  3. Step 3: Cross multiply
    42,221.12x = 63,330.24 × 20,045.12
  4. Step 4: Simplify right side
    42,221.12x = 1,269,462,260.43
  5. Step 5: Solve for x
    x = 1,269,462,260.43/42,221.12
  6. Step 6: Final answer
    x = 30,067.00

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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.