Home / 28,378.42-39,163.52-16,282.50

Finding the Fourth Proportional to 28,378.42, 39,163.52 and 16,282.50

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Solution

The fourth proportional to 28,378.42, 39,163.52 and 16,282.50 is: 22,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.42 : 39,163.52 = 16,282.50 : x
  2. Step 2: Convert to fraction form
    28,378.42/39,163.52 = 16,282.50/x
  3. Step 3: Cross multiply
    28,378.42x = 39,163.52 × 16,282.50
  4. Step 4: Simplify right side
    28,378.42x = 637,680,014.40
  5. Step 5: Solve for x
    x = 637,680,014.40/28,378.42
  6. Step 6: Final answer
    x = 22,470.60

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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.