Home / 27,919.15-38,528.00-15,343.63

Finding the Fourth Proportional to 27,919.15, 38,528.00 and 15,343.63

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Solution

The fourth proportional to 27,919.15, 38,528.00 and 15,343.63 is: 21,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.15 : 38,528.00 = 15,343.63 : x
  2. Step 2: Convert to fraction form
    27,919.15/38,528.00 = 15,343.63/x
  3. Step 3: Cross multiply
    27,919.15x = 38,528.00 × 15,343.63
  4. Step 4: Simplify right side
    27,919.15x = 591,159,299.92
  5. Step 5: Solve for x
    x = 591,159,299.92/27,919.15
  6. Step 6: Final answer
    x = 21,173.97

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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.