Home / 39,477.57-54,479.75-21,573.33

Finding the Fourth Proportional to 39,477.57, 54,479.75 and 21,573.33

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Solution

The fourth proportional to 39,477.57, 54,479.75 and 21,573.33 is: 29,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.57 : 54,479.75 = 21,573.33 : x
  2. Step 2: Convert to fraction form
    39,477.57/54,479.75 = 21,573.33/x
  3. Step 3: Cross multiply
    39,477.57x = 54,479.75 × 21,573.33
  4. Step 4: Simplify right side
    39,477.57x = 1,175,309,625.07
  5. Step 5: Solve for x
    x = 1,175,309,625.07/39,477.57
  6. Step 6: Final answer
    x = 29,771.58

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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.