Home / 43,768.58-65,655.19-13,785.16

Finding the Fourth Proportional to 43,768.58, 65,655.19 and 13,785.16

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Solution

The fourth proportional to 43,768.58, 65,655.19 and 13,785.16 is: 20,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,768.58 : 65,655.19 = 13,785.16 : x
  2. Step 2: Convert to fraction form
    43,768.58/65,655.19 = 13,785.16/x
  3. Step 3: Cross multiply
    43,768.58x = 65,655.19 × 13,785.16
  4. Step 4: Simplify right side
    43,768.58x = 905,066,901.78
  5. Step 5: Solve for x
    x = 905,066,901.78/43,768.58
  6. Step 6: Final answer
    x = 20,678.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.