Home / 20,592.29-28,417.34-11,160.86

Finding the Fourth Proportional to 20,592.29, 28,417.34 and 11,160.86

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Solution

The fourth proportional to 20,592.29, 28,417.34 and 11,160.86 is: 15,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.29 : 28,417.34 = 11,160.86 : x
  2. Step 2: Convert to fraction form
    20,592.29/28,417.34 = 11,160.86/x
  3. Step 3: Cross multiply
    20,592.29x = 28,417.34 × 11,160.86
  4. Step 4: Simplify right side
    20,592.29x = 317,161,839.13
  5. Step 5: Solve for x
    x = 317,161,839.13/20,592.29
  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.