Home / 27,558.96-38,034.34-15,621.02

Finding the Fourth Proportional to 27,558.96, 38,034.34 and 15,621.02

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Solution

The fourth proportional to 27,558.96, 38,034.34 and 15,621.02 is: 21,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,558.96 : 38,034.34 = 15,621.02 : x
  2. Step 2: Convert to fraction form
    27,558.96/38,034.34 = 15,621.02/x
  3. Step 3: Cross multiply
    27,558.96x = 38,034.34 × 15,621.02
  4. Step 4: Simplify right side
    27,558.96x = 594,135,185.83
  5. Step 5: Solve for x
    x = 594,135,185.83/27,558.96
  6. Step 6: Final answer
    x = 21,558.69

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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.