Home / 22,939.81-31,654.09-12,866.85

Finding the Fourth Proportional to 22,939.81, 31,654.09 and 12,866.85

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Solution

The fourth proportional to 22,939.81, 31,654.09 and 12,866.85 is: 17,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.81 : 31,654.09 = 12,866.85 : x
  2. Step 2: Convert to fraction form
    22,939.81/31,654.09 = 12,866.85/x
  3. Step 3: Cross multiply
    22,939.81x = 31,654.09 × 12,866.85
  4. Step 4: Simplify right side
    22,939.81x = 407,288,444.00
  5. Step 5: Solve for x
    x = 407,288,444.00/22,939.81
  6. Step 6: Final answer
    x = 17,754.66

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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.