Home / 43,239.71-64,884.58-18,278.15

Finding the Fourth Proportional to 43,239.71, 64,884.58 and 18,278.15

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Solution

The fourth proportional to 43,239.71, 64,884.58 and 18,278.15 is: 27,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,239.71 : 64,884.58 = 18,278.15 : x
  2. Step 2: Convert to fraction form
    43,239.71/64,884.58 = 18,278.15/x
  3. Step 3: Cross multiply
    43,239.71x = 64,884.58 × 18,278.15
  4. Step 4: Simplify right side
    43,239.71x = 1,185,970,085.93
  5. Step 5: Solve for x
    x = 1,185,970,085.93/43,239.71
  6. Step 6: Final answer
    x = 27,427.80

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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.