Home / 33,121.64-45,707.88-18,217.64

Finding the Fourth Proportional to 33,121.64, 45,707.88 and 18,217.64

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Solution

The fourth proportional to 33,121.64, 45,707.88 and 18,217.64 is: 25,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.64 : 45,707.88 = 18,217.64 : x
  2. Step 2: Convert to fraction form
    33,121.64/45,707.88 = 18,217.64/x
  3. Step 3: Cross multiply
    33,121.64x = 45,707.88 × 18,217.64
  4. Step 4: Simplify right side
    33,121.64x = 832,689,703.00
  5. Step 5: Solve for x
    x = 832,689,703.00/33,121.64
  6. Step 6: Final answer
    x = 25,140.35

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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.