Home / 19,538.81-26,960.51-11,579.75

Finding the Fourth Proportional to 19,538.81, 26,960.51 and 11,579.75

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Solution

The fourth proportional to 19,538.81, 26,960.51 and 11,579.75 is: 15,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.81 : 26,960.51 = 11,579.75 : x
  2. Step 2: Convert to fraction form
    19,538.81/26,960.51 = 11,579.75/x
  3. Step 3: Cross multiply
    19,538.81x = 26,960.51 × 11,579.75
  4. Step 4: Simplify right side
    19,538.81x = 312,195,869.32
  5. Step 5: Solve for x
    x = 312,195,869.32/19,538.81
  6. Step 6: Final answer
    x = 15,978.25

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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.