Home / 19,996.50-29,995.47-7,515.21

Finding the Fourth Proportional to 19,996.50, 29,995.47 and 7,515.21

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Solution

The fourth proportional to 19,996.50, 29,995.47 and 7,515.21 is: 11,273.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.50 : 29,995.47 = 7,515.21 : x
  2. Step 2: Convert to fraction form
    19,996.50/29,995.47 = 7,515.21/x
  3. Step 3: Cross multiply
    19,996.50x = 29,995.47 × 7,515.21
  4. Step 4: Simplify right side
    19,996.50x = 225,422,256.10
  5. Step 5: Solve for x
    x = 225,422,256.10/19,996.50
  6. Step 6: Final answer
    x = 11,273.09

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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.