Home / 39,477.16-54,477.52-21,571.71

Finding the Fourth Proportional to 39,477.16, 54,477.52 and 21,571.71

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Solution

The fourth proportional to 39,477.16, 54,477.52 and 21,571.71 is: 29,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.16 : 54,477.52 = 21,571.71 : x
  2. Step 2: Convert to fraction form
    39,477.16/54,477.52 = 21,571.71/x
  3. Step 3: Cross multiply
    39,477.16x = 54,477.52 × 21,571.71
  4. Step 4: Simplify right side
    39,477.16x = 1,175,173,262.96
  5. Step 5: Solve for x
    x = 1,175,173,262.96/39,477.16
  6. Step 6: Final answer
    x = 29,768.43

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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.