Home / 31,339.68-43,250.67-20,710.86

Finding the Fourth Proportional to 31,339.68, 43,250.67 and 20,710.86

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Solution

The fourth proportional to 31,339.68, 43,250.67 and 20,710.86 is: 28,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.68 : 43,250.67 = 20,710.86 : x
  2. Step 2: Convert to fraction form
    31,339.68/43,250.67 = 20,710.86/x
  3. Step 3: Cross multiply
    31,339.68x = 43,250.67 × 20,710.86
  4. Step 4: Simplify right side
    31,339.68x = 895,758,571.28
  5. Step 5: Solve for x
    x = 895,758,571.28/31,339.68
  6. Step 6: Final answer
    x = 28,582.25

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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.