Home / 19,993.49-29,972.41-10,127.69

Finding the Fourth Proportional to 19,993.49, 29,972.41 and 10,127.69

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Solution

The fourth proportional to 19,993.49, 29,972.41 and 10,127.69 is: 15,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.49 : 29,972.41 = 10,127.69 : x
  2. Step 2: Convert to fraction form
    19,993.49/29,972.41 = 10,127.69/x
  3. Step 3: Cross multiply
    19,993.49x = 29,972.41 × 10,127.69
  4. Step 4: Simplify right side
    19,993.49x = 303,551,226.39
  5. Step 5: Solve for x
    x = 303,551,226.39/19,993.49
  6. Step 6: Final answer
    x = 15,182.50

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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.