Home / 19,652.20-27,154.56-15,705.88

Finding the Fourth Proportional to 19,652.20, 27,154.56 and 15,705.88

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Solution

The fourth proportional to 19,652.20, 27,154.56 and 15,705.88 is: 21,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,652.20 : 27,154.56 = 15,705.88 : x
  2. Step 2: Convert to fraction form
    19,652.20/27,154.56 = 15,705.88/x
  3. Step 3: Cross multiply
    19,652.20x = 27,154.56 × 15,705.88
  4. Step 4: Simplify right side
    19,652.20x = 426,486,260.81
  5. Step 5: Solve for x
    x = 426,486,260.81/19,652.20
  6. Step 6: Final answer
    x = 21,701.71

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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.