Home / 20,153.84-27,785.58-16,555.28

Finding the Fourth Proportional to 20,153.84, 27,785.58 and 16,555.28

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Solution

The fourth proportional to 20,153.84, 27,785.58 and 16,555.28 is: 22,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.84 : 27,785.58 = 16,555.28 : x
  2. Step 2: Convert to fraction form
    20,153.84/27,785.58 = 16,555.28/x
  3. Step 3: Cross multiply
    20,153.84x = 27,785.58 × 16,555.28
  4. Step 4: Simplify right side
    20,153.84x = 459,998,056.86
  5. Step 5: Solve for x
    x = 459,998,056.86/20,153.84
  6. Step 6: Final answer
    x = 22,824.34

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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.