Home / 28,318.13-42,479.06-8,329.41

Finding the Fourth Proportional to 28,318.13, 42,479.06 and 8,329.41

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Solution

The fourth proportional to 28,318.13, 42,479.06 and 8,329.41 is: 12,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.13 : 42,479.06 = 8,329.41 : x
  2. Step 2: Convert to fraction form
    28,318.13/42,479.06 = 8,329.41/x
  3. Step 3: Cross multiply
    28,318.13x = 42,479.06 × 8,329.41
  4. Step 4: Simplify right side
    28,318.13x = 353,825,329.93
  5. Step 5: Solve for x
    x = 353,825,329.93/28,318.13
  6. Step 6: Final answer
    x = 12,494.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.