Home / 39,177.58-54,065.28-21,272.59

Finding the Fourth Proportional to 39,177.58, 54,065.28 and 21,272.59

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Solution

The fourth proportional to 39,177.58, 54,065.28 and 21,272.59 is: 29,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.58 : 54,065.28 = 21,272.59 : x
  2. Step 2: Convert to fraction form
    39,177.58/54,065.28 = 21,272.59/x
  3. Step 3: Cross multiply
    39,177.58x = 54,065.28 × 21,272.59
  4. Step 4: Simplify right side
    39,177.58x = 1,150,108,157.99
  5. Step 5: Solve for x
    x = 1,150,108,157.99/39,177.58
  6. Step 6: Final answer
    x = 29,356.28

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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.