Home / 31,792.99-43,872.28-19,855.62

Finding the Fourth Proportional to 31,792.99, 43,872.28 and 19,855.62

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Solution

The fourth proportional to 31,792.99, 43,872.28 and 19,855.62 is: 27,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,792.99 : 43,872.28 = 19,855.62 : x
  2. Step 2: Convert to fraction form
    31,792.99/43,872.28 = 19,855.62/x
  3. Step 3: Cross multiply
    31,792.99x = 43,872.28 × 19,855.62
  4. Step 4: Simplify right side
    31,792.99x = 871,111,320.21
  5. Step 5: Solve for x
    x = 871,111,320.21/31,792.99
  6. Step 6: Final answer
    x = 27,399.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.