Home / 38,285.55-57,440.03-19,578.74

Finding the Fourth Proportional to 38,285.55, 57,440.03 and 19,578.74

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Solution

The fourth proportional to 38,285.55, 57,440.03 and 19,578.74 is: 29,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,285.55 : 57,440.03 = 19,578.74 : x
  2. Step 2: Convert to fraction form
    38,285.55/57,440.03 = 19,578.74/x
  3. Step 3: Cross multiply
    38,285.55x = 57,440.03 × 19,578.74
  4. Step 4: Simplify right side
    38,285.55x = 1,124,603,027.87
  5. Step 5: Solve for x
    x = 1,124,603,027.87/38,285.55
  6. Step 6: Final answer
    x = 29,374.09

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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.