Home / 20,569.57-28,388.52-11,617.45

Finding the Fourth Proportional to 20,569.57, 28,388.52 and 11,617.45

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Solution

The fourth proportional to 20,569.57, 28,388.52 and 11,617.45 is: 16,033.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.57 : 28,388.52 = 11,617.45 : x
  2. Step 2: Convert to fraction form
    20,569.57/28,388.52 = 11,617.45/x
  3. Step 3: Cross multiply
    20,569.57x = 28,388.52 × 11,617.45
  4. Step 4: Simplify right side
    20,569.57x = 329,802,211.67
  5. Step 5: Solve for x
    x = 329,802,211.67/20,569.57
  6. Step 6: Final answer
    x = 16,033.50

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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.