Home / 39,705.23-54,793.33-21,801.40

Finding the Fourth Proportional to 39,705.23, 54,793.33 and 21,801.40

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Solution

The fourth proportional to 39,705.23, 54,793.33 and 21,801.40 is: 30,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.23 : 54,793.33 = 21,801.40 : x
  2. Step 2: Convert to fraction form
    39,705.23/54,793.33 = 21,801.40/x
  3. Step 3: Cross multiply
    39,705.23x = 54,793.33 × 21,801.40
  4. Step 4: Simplify right side
    39,705.23x = 1,194,571,304.66
  5. Step 5: Solve for x
    x = 1,194,571,304.66/39,705.23
  6. Step 6: Final answer
    x = 30,085.99

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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.