Home / 27,559.60-38,035.20-15,621.64

Finding the Fourth Proportional to 27,559.60, 38,035.20 and 15,621.64

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Solution

The fourth proportional to 27,559.60, 38,035.20 and 15,621.64 is: 21,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,559.60 : 38,035.20 = 15,621.64 : x
  2. Step 2: Convert to fraction form
    27,559.60/38,035.20 = 15,621.64/x
  3. Step 3: Cross multiply
    27,559.60x = 38,035.20 × 15,621.64
  4. Step 4: Simplify right side
    27,559.60x = 594,172,201.73
  5. Step 5: Solve for x
    x = 594,172,201.73/27,559.60
  6. Step 6: Final answer
    x = 21,559.54

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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.