Home / 28,872.86-39,833.34-16,931.84

Finding the Fourth Proportional to 28,872.86, 39,833.34 and 16,931.84

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Solution

The fourth proportional to 28,872.86, 39,833.34 and 16,931.84 is: 23,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.86 : 39,833.34 = 16,931.84 : x
  2. Step 2: Convert to fraction form
    28,872.86/39,833.34 = 16,931.84/x
  3. Step 3: Cross multiply
    28,872.86x = 39,833.34 × 16,931.84
  4. Step 4: Simplify right side
    28,872.86x = 674,451,540.38
  5. Step 5: Solve for x
    x = 674,451,540.38/28,872.86
  6. Step 6: Final answer
    x = 23,359.36

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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.