Home / 31,480.21-43,442.14-18,050.65

Finding the Fourth Proportional to 31,480.21, 43,442.14 and 18,050.65

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Solution

The fourth proportional to 31,480.21, 43,442.14 and 18,050.65 is: 24,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.21 : 43,442.14 = 18,050.65 : x
  2. Step 2: Convert to fraction form
    31,480.21/43,442.14 = 18,050.65/x
  3. Step 3: Cross multiply
    31,480.21x = 43,442.14 × 18,050.65
  4. Step 4: Simplify right side
    31,480.21x = 784,158,864.39
  5. Step 5: Solve for x
    x = 784,158,864.39/31,480.21
  6. Step 6: Final answer
    x = 24,909.58

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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.