Home / 20,621.37-30,918.17-9,521.94

Finding the Fourth Proportional to 20,621.37, 30,918.17 and 9,521.94

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Solution

The fourth proportional to 20,621.37, 30,918.17 and 9,521.94 is: 14,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.37 : 30,918.17 = 9,521.94 : x
  2. Step 2: Convert to fraction form
    20,621.37/30,918.17 = 9,521.94/x
  3. Step 3: Cross multiply
    20,621.37x = 30,918.17 × 9,521.94
  4. Step 4: Simplify right side
    20,621.37x = 294,400,912.04
  5. Step 5: Solve for x
    x = 294,400,912.04/20,621.37
  6. Step 6: Final answer
    x = 14,276.50

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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.