Home / 22,729.91-31,361.99-13,775.45

Finding the Fourth Proportional to 22,729.91, 31,361.99 and 13,775.45

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Solution

The fourth proportional to 22,729.91, 31,361.99 and 13,775.45 is: 19,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.91 : 31,361.99 = 13,775.45 : x
  2. Step 2: Convert to fraction form
    22,729.91/31,361.99 = 13,775.45/x
  3. Step 3: Cross multiply
    22,729.91x = 31,361.99 × 13,775.45
  4. Step 4: Simplify right side
    22,729.91x = 432,025,299.46
  5. Step 5: Solve for x
    x = 432,025,299.46/22,729.91
  6. Step 6: Final answer
    x = 19,006.91

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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.