Home / 40,647.12-60,975.84-13,986.24

Finding the Fourth Proportional to 40,647.12, 60,975.84 and 13,986.24

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Solution

The fourth proportional to 40,647.12, 60,975.84 and 13,986.24 is: 20,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,647.12 : 60,975.84 = 13,986.24 : x
  2. Step 2: Convert to fraction form
    40,647.12/60,975.84 = 13,986.24/x
  3. Step 3: Cross multiply
    40,647.12x = 60,975.84 × 13,986.24
  4. Step 4: Simplify right side
    40,647.12x = 852,822,732.44
  5. Step 5: Solve for x
    x = 852,822,732.44/40,647.12
  6. Step 6: Final answer
    x = 20,981.14

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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.