Home / 31,479.21-43,440.77-18,049.65

Finding the Fourth Proportional to 31,479.21, 43,440.77 and 18,049.65

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Solution

The fourth proportional to 31,479.21, 43,440.77 and 18,049.65 is: 24,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479.21 : 43,440.77 = 18,049.65 : x
  2. Step 2: Convert to fraction form
    31,479.21/43,440.77 = 18,049.65/x
  3. Step 3: Cross multiply
    31,479.21x = 43,440.77 × 18,049.65
  4. Step 4: Simplify right side
    31,479.21x = 784,090,603.98
  5. Step 5: Solve for x
    x = 784,090,603.98/31,479.21
  6. Step 6: Final answer
    x = 24,908.21

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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.