Home / 20,204.48-27,885.52-11,819.36

Finding the Fourth Proportional to 20,204.48, 27,885.52 and 11,819.36

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Solution

The fourth proportional to 20,204.48, 27,885.52 and 11,819.36 is: 16,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.48 : 27,885.52 = 11,819.36 : x
  2. Step 2: Convert to fraction form
    20,204.48/27,885.52 = 11,819.36/x
  3. Step 3: Cross multiply
    20,204.48x = 27,885.52 × 11,819.36
  4. Step 4: Simplify right side
    20,204.48x = 329,588,999.67
  5. Step 5: Solve for x
    x = 329,588,999.67/20,204.48
  6. Step 6: Final answer
    x = 16,312.67

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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.