Home / 20,056.60-27,678.45-10,982.76

Finding the Fourth Proportional to 20,056.60, 27,678.45 and 10,982.76

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Solution

The fourth proportional to 20,056.60, 27,678.45 and 10,982.76 is: 15,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.60 : 27,678.45 = 10,982.76 : x
  2. Step 2: Convert to fraction form
    20,056.60/27,678.45 = 10,982.76/x
  3. Step 3: Cross multiply
    20,056.60x = 27,678.45 × 10,982.76
  4. Step 4: Simplify right side
    20,056.60x = 303,985,773.52
  5. Step 5: Solve for x
    x = 303,985,773.52/20,056.60
  6. Step 6: Final answer
    x = 15,156.40

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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.