Home / 28,578.93-39,435.18-16,479.86

Finding the Fourth Proportional to 28,578.93, 39,435.18 and 16,479.86

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Solution

The fourth proportional to 28,578.93, 39,435.18 and 16,479.86 is: 22,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.93 : 39,435.18 = 16,479.86 : x
  2. Step 2: Convert to fraction form
    28,578.93/39,435.18 = 16,479.86/x
  3. Step 3: Cross multiply
    28,578.93x = 39,435.18 × 16,479.86
  4. Step 4: Simplify right side
    28,578.93x = 649,886,032.85
  5. Step 5: Solve for x
    x = 649,886,032.85/28,578.93
  6. Step 6: Final answer
    x = 22,740.04

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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.