Home / 39,190.18-54,083.01-21,285.22

Finding the Fourth Proportional to 39,190.18, 54,083.01 and 21,285.22

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Solution

The fourth proportional to 39,190.18, 54,083.01 and 21,285.22 is: 29,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.18 : 54,083.01 = 21,285.22 : x
  2. Step 2: Convert to fraction form
    39,190.18/54,083.01 = 21,285.22/x
  3. Step 3: Cross multiply
    39,190.18x = 54,083.01 × 21,285.22
  4. Step 4: Simplify right side
    39,190.18x = 1,151,168,766.11
  5. Step 5: Solve for x
    x = 1,151,168,766.11/39,190.18
  6. Step 6: Final answer
    x = 29,373.91

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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.