Home / 27,644.02-38,150.34-20,917.99

Finding the Fourth Proportional to 27,644.02, 38,150.34 and 20,917.99

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Solution

The fourth proportional to 27,644.02, 38,150.34 and 20,917.99 is: 28,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,644.02 : 38,150.34 = 20,917.99 : x
  2. Step 2: Convert to fraction form
    27,644.02/38,150.34 = 20,917.99/x
  3. Step 3: Cross multiply
    27,644.02x = 38,150.34 × 20,917.99
  4. Step 4: Simplify right side
    27,644.02x = 798,028,430.62
  5. Step 5: Solve for x
    x = 798,028,430.62/27,644.02
  6. Step 6: Final answer
    x = 28,868.03

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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.