Home / 27,330.78-40,996.18-21,099.89

Finding the Fourth Proportional to 27,330.78, 40,996.18 and 21,099.89

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Solution

The fourth proportional to 27,330.78, 40,996.18 and 21,099.89 is: 31,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,330.78 : 40,996.18 = 21,099.89 : x
  2. Step 2: Convert to fraction form
    27,330.78/40,996.18 = 21,099.89/x
  3. Step 3: Cross multiply
    27,330.78x = 40,996.18 × 21,099.89
  4. Step 4: Simplify right side
    27,330.78x = 865,014,888.42
  5. Step 5: Solve for x
    x = 865,014,888.42/27,330.78
  6. Step 6: Final answer
    x = 31,649.84

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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.