Home / 21,015.01-31,522.83-6,225.43

Finding the Fourth Proportional to 21,015.01, 31,522.83 and 6,225.43

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Solution

The fourth proportional to 21,015.01, 31,522.83 and 6,225.43 is: 9,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.01 : 31,522.83 = 6,225.43 : x
  2. Step 2: Convert to fraction form
    21,015.01/31,522.83 = 6,225.43/x
  3. Step 3: Cross multiply
    21,015.01x = 31,522.83 × 6,225.43
  4. Step 4: Simplify right side
    21,015.01x = 196,243,171.57
  5. Step 5: Solve for x
    x = 196,243,171.57/21,015.01
  6. Step 6: Final answer
    x = 9,338.24

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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.