Home / 21,104.43-29,124.05-12,148.67

Finding the Fourth Proportional to 21,104.43, 29,124.05 and 12,148.67

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Solution

The fourth proportional to 21,104.43, 29,124.05 and 12,148.67 is: 16,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.43 : 29,124.05 = 12,148.67 : x
  2. Step 2: Convert to fraction form
    21,104.43/29,124.05 = 12,148.67/x
  3. Step 3: Cross multiply
    21,104.43x = 29,124.05 × 12,148.67
  4. Step 4: Simplify right side
    21,104.43x = 353,818,266.15
  5. Step 5: Solve for x
    x = 353,818,266.15/21,104.43
  6. Step 6: Final answer
    x = 16,765.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.