Home / 20,083.74-27,715.53-12,124.41

Finding the Fourth Proportional to 20,083.74, 27,715.53 and 12,124.41

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Solution

The fourth proportional to 20,083.74, 27,715.53 and 12,124.41 is: 16,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.74 : 27,715.53 = 12,124.41 : x
  2. Step 2: Convert to fraction form
    20,083.74/27,715.53 = 12,124.41/x
  3. Step 3: Cross multiply
    20,083.74x = 27,715.53 × 12,124.41
  4. Step 4: Simplify right side
    20,083.74x = 336,034,449.09
  5. Step 5: Solve for x
    x = 336,034,449.09/20,083.74
  6. Step 6: Final answer
    x = 16,731.67

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1.5x scale

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.