Home / 28,859.90-39,828.66-16,115.58

Finding the Fourth Proportional to 28,859.90, 39,828.66 and 16,115.58

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Solution

The fourth proportional to 28,859.90, 39,828.66 and 16,115.58 is: 22,240.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.90 : 39,828.66 = 16,115.58 : x
  2. Step 2: Convert to fraction form
    28,859.90/39,828.66 = 16,115.58/x
  3. Step 3: Cross multiply
    28,859.90x = 39,828.66 × 16,115.58
  4. Step 4: Simplify right side
    28,859.90x = 641,861,956.52
  5. Step 5: Solve for x
    x = 641,861,956.52/28,859.90
  6. Step 6: Final answer
    x = 22,240.62

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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.