Home / 19,997.16-29,995.70-10,139.24

Finding the Fourth Proportional to 19,997.16, 29,995.70 and 10,139.24

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Solution

The fourth proportional to 19,997.16, 29,995.70 and 10,139.24 is: 15,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.16 : 29,995.70 = 10,139.24 : x
  2. Step 2: Convert to fraction form
    19,997.16/29,995.70 = 10,139.24/x
  3. Step 3: Cross multiply
    19,997.16x = 29,995.70 × 10,139.24
  4. Step 4: Simplify right side
    19,997.16x = 304,133,601.27
  5. Step 5: Solve for x
    x = 304,133,601.27/19,997.16
  6. Step 6: Final answer
    x = 15,208.84

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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.