Home / 38,428.02-57,645.68-13,474.35

Finding the Fourth Proportional to 38,428.02, 57,645.68 and 13,474.35

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Solution

The fourth proportional to 38,428.02, 57,645.68 and 13,474.35 is: 20,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.02 : 57,645.68 = 13,474.35 : x
  2. Step 2: Convert to fraction form
    38,428.02/57,645.68 = 13,474.35/x
  3. Step 3: Cross multiply
    38,428.02x = 57,645.68 × 13,474.35
  4. Step 4: Simplify right side
    38,428.02x = 776,738,000.94
  5. Step 5: Solve for x
    x = 776,738,000.94/38,428.02
  6. Step 6: Final answer
    x = 20,212.80

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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.