Home / 19,856.64-27,404.35-11,359.55

Finding the Fourth Proportional to 19,856.64, 27,404.35 and 11,359.55

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Solution

The fourth proportional to 19,856.64, 27,404.35 and 11,359.55 is: 15,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.64 : 27,404.35 = 11,359.55 : x
  2. Step 2: Convert to fraction form
    19,856.64/27,404.35 = 11,359.55/x
  3. Step 3: Cross multiply
    19,856.64x = 27,404.35 × 11,359.55
  4. Step 4: Simplify right side
    19,856.64x = 311,301,084.04
  5. Step 5: Solve for x
    x = 311,301,084.04/19,856.64
  6. Step 6: Final answer
    x = 15,677.43

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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.