Home / 39,454.90-54,448.06-21,549.58

Finding the Fourth Proportional to 39,454.90, 54,448.06 and 21,549.58

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Solution

The fourth proportional to 39,454.90, 54,448.06 and 21,549.58 is: 29,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.90 : 54,448.06 = 21,549.58 : x
  2. Step 2: Convert to fraction form
    39,454.90/54,448.06 = 21,549.58/x
  3. Step 3: Cross multiply
    39,454.90x = 54,448.06 × 21,549.58
  4. Step 4: Simplify right side
    39,454.90x = 1,173,332,824.81
  5. Step 5: Solve for x
    x = 1,173,332,824.81/39,454.90
  6. Step 6: Final answer
    x = 29,738.58

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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.