Home / 28,618.24-39,492.80-16,042.88

Finding the Fourth Proportional to 28,618.24, 39,492.80 and 16,042.88

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Solution

The fourth proportional to 28,618.24, 39,492.80 and 16,042.88 is: 22,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.24 : 39,492.80 = 16,042.88 : x
  2. Step 2: Convert to fraction form
    28,618.24/39,492.80 = 16,042.88/x
  3. Step 3: Cross multiply
    28,618.24x = 39,492.80 × 16,042.88
  4. Step 4: Simplify right side
    28,618.24x = 633,578,251.26
  5. Step 5: Solve for x
    x = 633,578,251.26/28,618.24
  6. Step 6: Final answer
    x = 22,138.97

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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.