Home / 29,731.51-40,995.85-18,961.97

Finding the Fourth Proportional to 29,731.51, 40,995.85 and 18,961.97

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Solution

The fourth proportional to 29,731.51, 40,995.85 and 18,961.97 is: 26,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,731.51 : 40,995.85 = 18,961.97 : x
  2. Step 2: Convert to fraction form
    29,731.51/40,995.85 = 18,961.97/x
  3. Step 3: Cross multiply
    29,731.51x = 40,995.85 × 18,961.97
  4. Step 4: Simplify right side
    29,731.51x = 777,362,153.57
  5. Step 5: Solve for x
    x = 777,362,153.57/29,731.51
  6. Step 6: Final answer
    x = 26,146.07

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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.