Home / 20,056.61-27,678.57-10,982.84

Finding the Fourth Proportional to 20,056.61, 27,678.57 and 10,982.84

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Solution

The fourth proportional to 20,056.61, 27,678.57 and 10,982.84 is: 15,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.61 : 27,678.57 = 10,982.84 : x
  2. Step 2: Convert to fraction form
    20,056.61/27,678.57 = 10,982.84/x
  3. Step 3: Cross multiply
    20,056.61x = 27,678.57 × 10,982.84
  4. Step 4: Simplify right side
    20,056.61x = 303,989,305.74
  5. Step 5: Solve for x
    x = 303,989,305.74/20,056.61
  6. Step 6: Final answer
    x = 15,156.56

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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.