Home / 19,895.13-29,789.34-10,515.66

Finding the Fourth Proportional to 19,895.13, 29,789.34 and 10,515.66

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Solution

The fourth proportional to 19,895.13, 29,789.34 and 10,515.66 is: 15,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.13 : 29,789.34 = 10,515.66 : x
  2. Step 2: Convert to fraction form
    19,895.13/29,789.34 = 10,515.66/x
  3. Step 3: Cross multiply
    19,895.13x = 29,789.34 × 10,515.66
  4. Step 4: Simplify right side
    19,895.13x = 313,254,571.06
  5. Step 5: Solve for x
    x = 313,254,571.06/19,895.13
  6. Step 6: Final answer
    x = 15,745.29

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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.