Home / 20,034.12-27,617.58-15,771.51

Finding the Fourth Proportional to 20,034.12, 27,617.58 and 15,771.51

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Solution

The fourth proportional to 20,034.12, 27,617.58 and 15,771.51 is: 21,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.12 : 27,617.58 = 15,771.51 : x
  2. Step 2: Convert to fraction form
    20,034.12/27,617.58 = 15,771.51/x
  3. Step 3: Cross multiply
    20,034.12x = 27,617.58 × 15,771.51
  4. Step 4: Simplify right side
    20,034.12x = 435,570,939.15
  5. Step 5: Solve for x
    x = 435,570,939.15/20,034.12
  6. Step 6: Final answer
    x = 21,741.46

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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.