Home / 27,400.19-41,113.28-18,979.64

Finding the Fourth Proportional to 27,400.19, 41,113.28 and 18,979.64

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Solution

The fourth proportional to 27,400.19, 41,113.28 and 18,979.64 is: 28,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400.19 : 41,113.28 = 18,979.64 : x
  2. Step 2: Convert to fraction form
    27,400.19/41,113.28 = 18,979.64/x
  3. Step 3: Cross multiply
    27,400.19x = 41,113.28 × 18,979.64
  4. Step 4: Simplify right side
    27,400.19x = 780,314,953.15
  5. Step 5: Solve for x
    x = 780,314,953.15/27,400.19
  6. Step 6: Final answer
    x = 28,478.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.