Home / 28,711.53-39,621.96-16,772.67

Finding the Fourth Proportional to 28,711.53, 39,621.96 and 16,772.67

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Solution

The fourth proportional to 28,711.53, 39,621.96 and 16,772.67 is: 23,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.53 : 39,621.96 = 16,772.67 : x
  2. Step 2: Convert to fraction form
    28,711.53/39,621.96 = 16,772.67/x
  3. Step 3: Cross multiply
    28,711.53x = 39,621.96 × 16,772.67
  4. Step 4: Simplify right side
    28,711.53x = 664,566,059.83
  5. Step 5: Solve for x
    x = 664,566,059.83/28,711.53
  6. Step 6: Final answer
    x = 23,146.31

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1.5x scale

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.