Home / 20,330.54-30,492.66-7,848.74

Finding the Fourth Proportional to 20,330.54, 30,492.66 and 7,848.74

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Solution

The fourth proportional to 20,330.54, 30,492.66 and 7,848.74 is: 11,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.54 : 30,492.66 = 7,848.74 : x
  2. Step 2: Convert to fraction form
    20,330.54/30,492.66 = 7,848.74/x
  3. Step 3: Cross multiply
    20,330.54x = 30,492.66 × 7,848.74
  4. Step 4: Simplify right side
    20,330.54x = 239,328,960.25
  5. Step 5: Solve for x
    x = 239,328,960.25/20,330.54
  6. Step 6: Final answer
    x = 11,771.89

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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.