Home / 33,138.06-45,730.52-18,999.10

Finding the Fourth Proportional to 33,138.06, 45,730.52 and 18,999.10

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Solution

The fourth proportional to 33,138.06, 45,730.52 and 18,999.10 is: 26,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.06 : 45,730.52 = 18,999.10 : x
  2. Step 2: Convert to fraction form
    33,138.06/45,730.52 = 18,999.10/x
  3. Step 3: Cross multiply
    33,138.06x = 45,730.52 × 18,999.10
  4. Step 4: Simplify right side
    33,138.06x = 868,838,722.53
  5. Step 5: Solve for x
    x = 868,838,722.53/33,138.06
  6. Step 6: Final answer
    x = 26,218.76

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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.