Home / 27,645.30-38,150.58-15,712.60

Finding the Fourth Proportional to 27,645.30, 38,150.58 and 15,712.60

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Solution

The fourth proportional to 27,645.30, 38,150.58 and 15,712.60 is: 21,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.30 : 38,150.58 = 15,712.60 : x
  2. Step 2: Convert to fraction form
    27,645.30/38,150.58 = 15,712.60/x
  3. Step 3: Cross multiply
    27,645.30x = 38,150.58 × 15,712.60
  4. Step 4: Simplify right side
    27,645.30x = 599,444,803.31
  5. Step 5: Solve for x
    x = 599,444,803.31/27,645.30
  6. Step 6: Final answer
    x = 21,683.43

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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.