Home / 28,872.91-39,833.43-16,931.89

Finding the Fourth Proportional to 28,872.91, 39,833.43 and 16,931.89

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Solution

The fourth proportional to 28,872.91, 39,833.43 and 16,931.89 is: 23,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.91 : 39,833.43 = 16,931.89 : x
  2. Step 2: Convert to fraction form
    28,872.91/39,833.43 = 16,931.89/x
  3. Step 3: Cross multiply
    28,872.91x = 39,833.43 × 16,931.89
  4. Step 4: Simplify right side
    28,872.91x = 674,455,255.08
  5. Step 5: Solve for x
    x = 674,455,255.08/28,872.91
  6. Step 6: Final answer
    x = 23,359.45

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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.