Home / 21,022.74-31,533.96-6,231.72

Finding the Fourth Proportional to 21,022.74, 31,533.96 and 6,231.72

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Solution

The fourth proportional to 21,022.74, 31,533.96 and 6,231.72 is: 9,347.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.74 : 31,533.96 = 6,231.72 : x
  2. Step 2: Convert to fraction form
    21,022.74/31,533.96 = 6,231.72/x
  3. Step 3: Cross multiply
    21,022.74x = 31,533.96 × 6,231.72
  4. Step 4: Simplify right side
    21,022.74x = 196,510,809.21
  5. Step 5: Solve for x
    x = 196,510,809.21/21,022.74
  6. Step 6: Final answer
    x = 9,347.54

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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.