Home / 31,480.81-43,444.24-17,869.78

Finding the Fourth Proportional to 31,480.81, 43,444.24 and 17,869.78

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Solution

The fourth proportional to 31,480.81, 43,444.24 and 17,869.78 is: 24,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.81 : 43,444.24 = 17,869.78 : x
  2. Step 2: Convert to fraction form
    31,480.81/43,444.24 = 17,869.78/x
  3. Step 3: Cross multiply
    31,480.81x = 43,444.24 × 17,869.78
  4. Step 4: Simplify right side
    31,480.81x = 776,339,011.07
  5. Step 5: Solve for x
    x = 776,339,011.07/31,480.81
  6. Step 6: Final answer
    x = 24,660.71

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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.