Home / 39,238.53-54,148.90-21,333.54

Finding the Fourth Proportional to 39,238.53, 54,148.90 and 21,333.54

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Solution

The fourth proportional to 39,238.53, 54,148.90 and 21,333.54 is: 29,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.53 : 54,148.90 = 21,333.54 : x
  2. Step 2: Convert to fraction form
    39,238.53/54,148.90 = 21,333.54/x
  3. Step 3: Cross multiply
    39,238.53x = 54,148.90 × 21,333.54
  4. Step 4: Simplify right side
    39,238.53x = 1,155,187,724.11
  5. Step 5: Solve for x
    x = 1,155,187,724.11/39,238.53
  6. Step 6: Final answer
    x = 29,440.14

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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.