Home / 30,246.39-41,740.20-18,309.81

Finding the Fourth Proportional to 30,246.39, 41,740.20 and 18,309.81

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Solution

The fourth proportional to 30,246.39, 41,740.20 and 18,309.81 is: 25,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.39 : 41,740.20 = 18,309.81 : x
  2. Step 2: Convert to fraction form
    30,246.39/41,740.20 = 18,309.81/x
  3. Step 3: Cross multiply
    30,246.39x = 41,740.20 × 18,309.81
  4. Step 4: Simplify right side
    30,246.39x = 764,255,131.36
  5. Step 5: Solve for x
    x = 764,255,131.36/30,246.39
  6. Step 6: Final answer
    x = 25,267.65

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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.