Home / 39,085.72-53,939.10-22,319.80

Finding the Fourth Proportional to 39,085.72, 53,939.10 and 22,319.80

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Solution

The fourth proportional to 39,085.72, 53,939.10 and 22,319.80 is: 30,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,085.72 : 53,939.10 = 22,319.80 : x
  2. Step 2: Convert to fraction form
    39,085.72/53,939.10 = 22,319.80/x
  3. Step 3: Cross multiply
    39,085.72x = 53,939.10 × 22,319.80
  4. Step 4: Simplify right side
    39,085.72x = 1,203,909,924.18
  5. Step 5: Solve for x
    x = 1,203,909,924.18/39,085.72
  6. Step 6: Final answer
    x = 30,801.78

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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.