Home / 23,287.68-34,938-12,906.72

Finding the Fourth Proportional to 23,287.68, 34,938 and 12,906.72

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Solution

The fourth proportional to 23,287.68, 34,938 and 12,906.72 is: 19,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,287.68 : 34,938 = 12,906.72 : x
  2. Step 2: Convert to fraction form
    23,287.68/34,938 = 12,906.72/x
  3. Step 3: Cross multiply
    23,287.68x = 34,938 × 12,906.72
  4. Step 4: Simplify right side
    23,287.68x = 450,934,983.36
  5. Step 5: Solve for x
    x = 450,934,983.36/23,287.68
  6. Step 6: Final answer
    x = 19,363.67

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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.