Home / 38,421.05-57,629.57-11,767.05

Finding the Fourth Proportional to 38,421.05, 57,629.57 and 11,767.05

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Solution

The fourth proportional to 38,421.05, 57,629.57 and 11,767.05 is: 17,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.05 : 57,629.57 = 11,767.05 : x
  2. Step 2: Convert to fraction form
    38,421.05/57,629.57 = 11,767.05/x
  3. Step 3: Cross multiply
    38,421.05x = 57,629.57 × 11,767.05
  4. Step 4: Simplify right side
    38,421.05x = 678,129,972.83
  5. Step 5: Solve for x
    x = 678,129,972.83/38,421.05
  6. Step 6: Final answer
    x = 17,649.96

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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.