Home / 21,019.21-31,523.43-6,224.67

Finding the Fourth Proportional to 21,019.21, 31,523.43 and 6,224.67

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Solution

The fourth proportional to 21,019.21, 31,523.43 and 6,224.67 is: 9,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.21 : 31,523.43 = 6,224.67 : x
  2. Step 2: Convert to fraction form
    21,019.21/31,523.43 = 6,224.67/x
  3. Step 3: Cross multiply
    21,019.21x = 31,523.43 × 6,224.67
  4. Step 4: Simplify right side
    21,019.21x = 196,222,760.28
  5. Step 5: Solve for x
    x = 196,222,760.28/21,019.21
  6. Step 6: Final answer
    x = 9,335.40

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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.