Home / 19,029.24-28,541.28-8,638.56

Finding the Fourth Proportional to 19,029.24, 28,541.28 and 8,638.56

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Solution

The fourth proportional to 19,029.24, 28,541.28 and 8,638.56 is: 12,956.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.24 : 28,541.28 = 8,638.56 : x
  2. Step 2: Convert to fraction form
    19,029.24/28,541.28 = 8,638.56/x
  3. Step 3: Cross multiply
    19,029.24x = 28,541.28 × 8,638.56
  4. Step 4: Simplify right side
    19,029.24x = 246,555,559.76
  5. Step 5: Solve for x
    x = 246,555,559.76/19,029.24
  6. Step 6: Final answer
    x = 12,956.67

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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.