Home / 19,991.15-29,986.73-5,951.38

Finding the Fourth Proportional to 19,991.15, 29,986.73 and 5,951.38

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Solution

The fourth proportional to 19,991.15, 29,986.73 and 5,951.38 is: 8,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.15 : 29,986.73 = 5,951.38 : x
  2. Step 2: Convert to fraction form
    19,991.15/29,986.73 = 5,951.38/x
  3. Step 3: Cross multiply
    19,991.15x = 29,986.73 × 5,951.38
  4. Step 4: Simplify right side
    19,991.15x = 178,462,320.46
  5. Step 5: Solve for x
    x = 178,462,320.46/19,991.15
  6. Step 6: Final answer
    x = 8,927.07

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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.