Home / 29,712.96-40,995.72-18,377.01

Finding the Fourth Proportional to 29,712.96, 40,995.72 and 18,377.01

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Solution

The fourth proportional to 29,712.96, 40,995.72 and 18,377.01 is: 25,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,712.96 : 40,995.72 = 18,377.01 : x
  2. Step 2: Convert to fraction form
    29,712.96/40,995.72 = 18,377.01/x
  3. Step 3: Cross multiply
    29,712.96x = 40,995.72 × 18,377.01
  4. Step 4: Simplify right side
    29,712.96x = 753,378,756.40
  5. Step 5: Solve for x
    x = 753,378,756.40/29,712.96
  6. Step 6: Final answer
    x = 25,355.22

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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.