Home / 30,268.78-45,403.09-14,425.79

Finding the Fourth Proportional to 30,268.78, 45,403.09 and 14,425.79

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Solution

The fourth proportional to 30,268.78, 45,403.09 and 14,425.79 is: 21,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,268.78 : 45,403.09 = 14,425.79 : x
  2. Step 2: Convert to fraction form
    30,268.78/45,403.09 = 14,425.79/x
  3. Step 3: Cross multiply
    30,268.78x = 45,403.09 × 14,425.79
  4. Step 4: Simplify right side
    30,268.78x = 654,975,214.68
  5. Step 5: Solve for x
    x = 654,975,214.68/30,268.78
  6. Step 6: Final answer
    x = 21,638.64

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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.