Home / 22,939.66-31,659.05-12,868.07

Finding the Fourth Proportional to 22,939.66, 31,659.05 and 12,868.07

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Solution

The fourth proportional to 22,939.66, 31,659.05 and 12,868.07 is: 17,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.66 : 31,659.05 = 12,868.07 : x
  2. Step 2: Convert to fraction form
    22,939.66/31,659.05 = 12,868.07/x
  3. Step 3: Cross multiply
    22,939.66x = 31,659.05 × 12,868.07
  4. Step 4: Simplify right side
    22,939.66x = 407,390,745.41
  5. Step 5: Solve for x
    x = 407,390,745.41/22,939.66
  6. Step 6: Final answer
    x = 17,759.24

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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.