Home / 22,944.79-31,661.22-12,871.14

Finding the Fourth Proportional to 22,944.79, 31,661.22 and 12,871.14

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Solution

The fourth proportional to 22,944.79, 31,661.22 and 12,871.14 is: 17,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,944.79 : 31,661.22 = 12,871.14 : x
  2. Step 2: Convert to fraction form
    22,944.79/31,661.22 = 12,871.14/x
  3. Step 3: Cross multiply
    22,944.79x = 31,661.22 × 12,871.14
  4. Step 4: Simplify right side
    22,944.79x = 407,515,995.19
  5. Step 5: Solve for x
    x = 407,515,995.19/22,944.79
  6. Step 6: Final answer
    x = 17,760.72

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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.