Home / 19,933.52-29,901.99-5,142.30

Finding the Fourth Proportional to 19,933.52, 29,901.99 and 5,142.30

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Solution

The fourth proportional to 19,933.52, 29,901.99 and 5,142.30 is: 7,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.52 : 29,901.99 = 5,142.30 : x
  2. Step 2: Convert to fraction form
    19,933.52/29,901.99 = 5,142.30/x
  3. Step 3: Cross multiply
    19,933.52x = 29,901.99 × 5,142.30
  4. Step 4: Simplify right side
    19,933.52x = 153,765,003.18
  5. Step 5: Solve for x
    x = 153,765,003.18/19,933.52
  6. Step 6: Final answer
    x = 7,713.89

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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.