Home / 29,172.34-40,263.85-18,976.11

Finding the Fourth Proportional to 29,172.34, 40,263.85 and 18,976.11

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Solution

The fourth proportional to 29,172.34, 40,263.85 and 18,976.11 is: 26,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172.34 : 40,263.85 = 18,976.11 : x
  2. Step 2: Convert to fraction form
    29,172.34/40,263.85 = 18,976.11/x
  3. Step 3: Cross multiply
    29,172.34x = 40,263.85 × 18,976.11
  4. Step 4: Simplify right side
    29,172.34x = 764,051,246.62
  5. Step 5: Solve for x
    x = 764,051,246.62/29,172.34
  6. Step 6: Final answer
    x = 26,190.95

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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.