Home / 29,705.77-40,960.38-18,936.28

Finding the Fourth Proportional to 29,705.77, 40,960.38 and 18,936.28

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Solution

The fourth proportional to 29,705.77, 40,960.38 and 18,936.28 is: 26,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,705.77 : 40,960.38 = 18,936.28 : x
  2. Step 2: Convert to fraction form
    29,705.77/40,960.38 = 18,936.28/x
  3. Step 3: Cross multiply
    29,705.77x = 40,960.38 × 18,936.28
  4. Step 4: Simplify right side
    29,705.77x = 775,637,224.59
  5. Step 5: Solve for x
    x = 775,637,224.59/29,705.77
  6. Step 6: Final answer
    x = 26,110.66

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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.