Home / 29,436.60-40,631.64-18,109.56

Finding the Fourth Proportional to 29,436.60, 40,631.64 and 18,109.56

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Solution

The fourth proportional to 29,436.60, 40,631.64 and 18,109.56 is: 24,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,436.60 : 40,631.64 = 18,109.56 : x
  2. Step 2: Convert to fraction form
    29,436.60/40,631.64 = 18,109.56/x
  3. Step 3: Cross multiply
    29,436.60x = 40,631.64 × 18,109.56
  4. Step 4: Simplify right side
    29,436.60x = 735,821,122.48
  5. Step 5: Solve for x
    x = 735,821,122.48/29,436.60
  6. Step 6: Final answer
    x = 24,996.81

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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.