Home / 30,188.67-45,268.44-12,653.79

Finding the Fourth Proportional to 30,188.67, 45,268.44 and 12,653.79

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Solution

The fourth proportional to 30,188.67, 45,268.44 and 12,653.79 is: 18,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.67 : 45,268.44 = 12,653.79 : x
  2. Step 2: Convert to fraction form
    30,188.67/45,268.44 = 12,653.79/x
  3. Step 3: Cross multiply
    30,188.67x = 45,268.44 × 12,653.79
  4. Step 4: Simplify right side
    30,188.67x = 572,817,333.39
  5. Step 5: Solve for x
    x = 572,817,333.39/30,188.67
  6. Step 6: Final answer
    x = 18,974.58

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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.