Home / 29,028.72-40,068.16-18,958.70

Finding the Fourth Proportional to 29,028.72, 40,068.16 and 18,958.70

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Solution

The fourth proportional to 29,028.72, 40,068.16 and 18,958.70 is: 26,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,028.72 : 40,068.16 = 18,958.70 : x
  2. Step 2: Convert to fraction form
    29,028.72/40,068.16 = 18,958.70/x
  3. Step 3: Cross multiply
    29,028.72x = 40,068.16 × 18,958.70
  4. Step 4: Simplify right side
    29,028.72x = 759,640,224.99
  5. Step 5: Solve for x
    x = 759,640,224.99/29,028.72
  6. Step 6: Final answer
    x = 26,168.57

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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.