Home / 34,800.78-48,021.48-20,650.89

Finding the Fourth Proportional to 34,800.78, 48,021.48 and 20,650.89

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Solution

The fourth proportional to 34,800.78, 48,021.48 and 20,650.89 is: 28,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,800.78 : 48,021.48 = 20,650.89 : x
  2. Step 2: Convert to fraction form
    34,800.78/48,021.48 = 20,650.89/x
  3. Step 3: Cross multiply
    34,800.78x = 48,021.48 × 20,650.89
  4. Step 4: Simplify right side
    34,800.78x = 991,686,301.12
  5. Step 5: Solve for x
    x = 991,686,301.12/34,800.78
  6. Step 6: Final answer
    x = 28,496.09

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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.