Home / 20,621.87-30,918.91-9,522.44

Finding the Fourth Proportional to 20,621.87, 30,918.91 and 9,522.44

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Solution

The fourth proportional to 20,621.87, 30,918.91 and 9,522.44 is: 14,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.87 : 30,918.91 = 9,522.44 : x
  2. Step 2: Convert to fraction form
    20,621.87/30,918.91 = 9,522.44/x
  3. Step 3: Cross multiply
    20,621.87x = 30,918.91 × 9,522.44
  4. Step 4: Simplify right side
    20,621.87x = 294,423,465.34
  5. Step 5: Solve for x
    x = 294,423,465.34/20,621.87
  6. Step 6: Final answer
    x = 14,277.24

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1.5x scale

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.