Home / 28,006.29-38,635.79-17,929.89

Finding the Fourth Proportional to 28,006.29, 38,635.79 and 17,929.89

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Solution

The fourth proportional to 28,006.29, 38,635.79 and 17,929.89 is: 24,734.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.29 : 38,635.79 = 17,929.89 : x
  2. Step 2: Convert to fraction form
    28,006.29/38,635.79 = 17,929.89/x
  3. Step 3: Cross multiply
    28,006.29x = 38,635.79 × 17,929.89
  4. Step 4: Simplify right side
    28,006.29x = 692,735,375.11
  5. Step 5: Solve for x
    x = 692,735,375.11/28,006.29
  6. Step 6: Final answer
    x = 24,734.99

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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.