Home / 39,190.32-54,083.03-21,285.67

Finding the Fourth Proportional to 39,190.32, 54,083.03 and 21,285.67

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Solution

The fourth proportional to 39,190.32, 54,083.03 and 21,285.67 is: 29,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.32 : 54,083.03 = 21,285.67 : x
  2. Step 2: Convert to fraction form
    39,190.32/54,083.03 = 21,285.67/x
  3. Step 3: Cross multiply
    39,190.32x = 54,083.03 × 21,285.67
  4. Step 4: Simplify right side
    39,190.32x = 1,151,193,422.75
  5. Step 5: Solve for x
    x = 1,151,193,422.75/39,190.32
  6. Step 6: Final answer
    x = 29,374.44

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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.