Home / 20,592.32-28,417.31-11,160.89

Finding the Fourth Proportional to 20,592.32, 28,417.31 and 11,160.89

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Solution

The fourth proportional to 20,592.32, 28,417.31 and 11,160.89 is: 15,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.32 : 28,417.31 = 11,160.89 : x
  2. Step 2: Convert to fraction form
    20,592.32/28,417.31 = 11,160.89/x
  3. Step 3: Cross multiply
    20,592.32x = 28,417.31 × 11,160.89
  4. Step 4: Simplify right side
    20,592.32x = 317,162,328.92
  5. Step 5: Solve for x
    x = 317,162,328.92/20,592.32
  6. Step 6: Final answer
    x = 15,401.97

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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.