Home / 19,621.73-29,416-8,520.02

Finding the Fourth Proportional to 19,621.73, 29,416 and 8,520.02

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Solution

The fourth proportional to 19,621.73, 29,416 and 8,520.02 is: 12,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.73 : 29,416 = 8,520.02 : x
  2. Step 2: Convert to fraction form
    19,621.73/29,416 = 8,520.02/x
  3. Step 3: Cross multiply
    19,621.73x = 29,416 × 8,520.02
  4. Step 4: Simplify right side
    19,621.73x = 250,624,908.32
  5. Step 5: Solve for x
    x = 250,624,908.32/19,621.73
  6. Step 6: Final answer
    x = 12,772.82

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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.