Home / 39,783.06-54,909-25,237.80

Finding the Fourth Proportional to 39,783.06, 54,909 and 25,237.80

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Solution

The fourth proportional to 39,783.06, 54,909 and 25,237.80 is: 34,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,783.06 : 54,909 = 25,237.80 : x
  2. Step 2: Convert to fraction form
    39,783.06/54,909 = 25,237.80/x
  3. Step 3: Cross multiply
    39,783.06x = 54,909 × 25,237.80
  4. Step 4: Simplify right side
    39,783.06x = 1,385,782,360.20
  5. Step 5: Solve for x
    x = 1,385,782,360.20/39,783.06
  6. Step 6: Final answer
    x = 34,833.48

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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.