Home / 28,966.46-39,970.41-16,217.87

Finding the Fourth Proportional to 28,966.46, 39,970.41 and 16,217.87

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Solution

The fourth proportional to 28,966.46, 39,970.41 and 16,217.87 is: 22,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.46 : 39,970.41 = 16,217.87 : x
  2. Step 2: Convert to fraction form
    28,966.46/39,970.41 = 16,217.87/x
  3. Step 3: Cross multiply
    28,966.46x = 39,970.41 × 16,217.87
  4. Step 4: Simplify right side
    28,966.46x = 648,234,968.62
  5. Step 5: Solve for x
    x = 648,234,968.62/28,966.46
  6. Step 6: Final answer
    x = 22,378.81

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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.