Home / 36,129.56-49,856.78-20,215.03

Finding the Fourth Proportional to 36,129.56, 49,856.78 and 20,215.03

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Solution

The fourth proportional to 36,129.56, 49,856.78 and 20,215.03 is: 27,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.56 : 49,856.78 = 20,215.03 : x
  2. Step 2: Convert to fraction form
    36,129.56/49,856.78 = 20,215.03/x
  3. Step 3: Cross multiply
    36,129.56x = 49,856.78 × 20,215.03
  4. Step 4: Simplify right side
    36,129.56x = 1,007,856,303.40
  5. Step 5: Solve for x
    x = 1,007,856,303.40/36,129.56
  6. Step 6: Final answer
    x = 27,895.62

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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.