Home / 20,730.02-30,944.19-18,105.62

Finding the Fourth Proportional to 20,730.02, 30,944.19 and 18,105.62

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Solution

The fourth proportional to 20,730.02, 30,944.19 and 18,105.62 is: 27,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.02 : 30,944.19 = 18,105.62 : x
  2. Step 2: Convert to fraction form
    20,730.02/30,944.19 = 18,105.62/x
  3. Step 3: Cross multiply
    20,730.02x = 30,944.19 × 18,105.62
  4. Step 4: Simplify right side
    20,730.02x = 560,263,590.63
  5. Step 5: Solve for x
    x = 560,263,590.63/20,730.02
  6. Step 6: Final answer
    x = 27,026.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.