Home / 31,416.16-43,364.42-20,116.08

Finding the Fourth Proportional to 31,416.16, 43,364.42 and 20,116.08

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Solution

The fourth proportional to 31,416.16, 43,364.42 and 20,116.08 is: 27,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.16 : 43,364.42 = 20,116.08 : x
  2. Step 2: Convert to fraction form
    31,416.16/43,364.42 = 20,116.08/x
  3. Step 3: Cross multiply
    31,416.16x = 43,364.42 × 20,116.08
  4. Step 4: Simplify right side
    31,416.16x = 872,322,141.87
  5. Step 5: Solve for x
    x = 872,322,141.87/31,416.16
  6. Step 6: Final answer
    x = 27,766.67

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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.