Home / 30,458.80-45,682.60-13,814.82

Finding the Fourth Proportional to 30,458.80, 45,682.60 and 13,814.82

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Solution

The fourth proportional to 30,458.80, 45,682.60 and 13,814.82 is: 20,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.80 : 45,682.60 = 13,814.82 : x
  2. Step 2: Convert to fraction form
    30,458.80/45,682.60 = 13,814.82/x
  3. Step 3: Cross multiply
    30,458.80x = 45,682.60 × 13,814.82
  4. Step 4: Simplify right side
    30,458.80x = 631,096,896.13
  5. Step 5: Solve for x
    x = 631,096,896.13/30,458.80
  6. Step 6: Final answer
    x = 20,719.69

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1.5x scale

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.