Home / 22,166.68-30,580.84-15,456.28

Finding the Fourth Proportional to 22,166.68, 30,580.84 and 15,456.28

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Solution

The fourth proportional to 22,166.68, 30,580.84 and 15,456.28 is: 21,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,166.68 : 30,580.84 = 15,456.28 : x
  2. Step 2: Convert to fraction form
    22,166.68/30,580.84 = 15,456.28/x
  3. Step 3: Cross multiply
    22,166.68x = 30,580.84 × 15,456.28
  4. Step 4: Simplify right side
    22,166.68x = 472,666,025.68
  5. Step 5: Solve for x
    x = 472,666,025.68/22,166.68
  6. Step 6: Final answer
    x = 21,323.27

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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.