Home / 43,278.84-64,943.64-18,317.34

Finding the Fourth Proportional to 43,278.84, 64,943.64 and 18,317.34

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Solution

The fourth proportional to 43,278.84, 64,943.64 and 18,317.34 is: 27,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278.84 : 64,943.64 = 18,317.34 : x
  2. Step 2: Convert to fraction form
    43,278.84/64,943.64 = 18,317.34/x
  3. Step 3: Cross multiply
    43,278.84x = 64,943.64 × 18,317.34
  4. Step 4: Simplify right side
    43,278.84x = 1,189,594,734.72
  5. Step 5: Solve for x
    x = 1,189,594,734.72/43,278.84
  6. Step 6: Final answer
    x = 27,486.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.