Home / 39,151.37-54,029.28-21,246.53

Finding the Fourth Proportional to 39,151.37, 54,029.28 and 21,246.53

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Solution

The fourth proportional to 39,151.37, 54,029.28 and 21,246.53 is: 29,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.37 : 54,029.28 = 21,246.53 : x
  2. Step 2: Convert to fraction form
    39,151.37/54,029.28 = 21,246.53/x
  3. Step 3: Cross multiply
    39,151.37x = 54,029.28 × 21,246.53
  4. Step 4: Simplify right side
    39,151.37x = 1,147,934,448.25
  5. Step 5: Solve for x
    x = 1,147,934,448.25/39,151.37
  6. Step 6: Final answer
    x = 29,320.42

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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.