Home / 43,578.44-65,364.06-13,988.36

Finding the Fourth Proportional to 43,578.44, 65,364.06 and 13,988.36

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Solution

The fourth proportional to 43,578.44, 65,364.06 and 13,988.36 is: 20,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.44 : 65,364.06 = 13,988.36 : x
  2. Step 2: Convert to fraction form
    43,578.44/65,364.06 = 13,988.36/x
  3. Step 3: Cross multiply
    43,578.44x = 65,364.06 × 13,988.36
  4. Step 4: Simplify right side
    43,578.44x = 914,336,002.34
  5. Step 5: Solve for x
    x = 914,336,002.34/43,578.44
  6. Step 6: Final answer
    x = 20,981.38

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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.