Home / 15,231.12-22,771.56-12,916.92

Finding the Fourth Proportional to 15,231.12, 22,771.56 and 12,916.92

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Solution

The fourth proportional to 15,231.12, 22,771.56 and 12,916.92 is: 19,311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.12 : 22,771.56 = 12,916.92 : x
  2. Step 2: Convert to fraction form
    15,231.12/22,771.56 = 12,916.92/x
  3. Step 3: Cross multiply
    15,231.12x = 22,771.56 × 12,916.92
  4. Step 4: Simplify right side
    15,231.12x = 294,138,418.80
  5. Step 5: Solve for x
    x = 294,138,418.80/15,231.12
  6. Step 6: Final answer
    x = 19,311.67

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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.