Home / 39,259.85-54,180.02-21,797.66

Finding the Fourth Proportional to 39,259.85, 54,180.02 and 21,797.66

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Solution

The fourth proportional to 39,259.85, 54,180.02 and 21,797.66 is: 30,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.85 : 54,180.02 = 21,797.66 : x
  2. Step 2: Convert to fraction form
    39,259.85/54,180.02 = 21,797.66/x
  3. Step 3: Cross multiply
    39,259.85x = 54,180.02 × 21,797.66
  4. Step 4: Simplify right side
    39,259.85x = 1,180,997,844.70
  5. Step 5: Solve for x
    x = 1,180,997,844.70/39,259.85
  6. Step 6: Final answer
    x = 30,081.57

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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.