Home / 30,650.64-45,895.72-20,087.42

Finding the Fourth Proportional to 30,650.64, 45,895.72 and 20,087.42

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Solution

The fourth proportional to 30,650.64, 45,895.72 and 20,087.42 is: 30,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.64 : 45,895.72 = 20,087.42 : x
  2. Step 2: Convert to fraction form
    30,650.64/45,895.72 = 20,087.42/x
  3. Step 3: Cross multiply
    30,650.64x = 45,895.72 × 20,087.42
  4. Step 4: Simplify right side
    30,650.64x = 921,926,603.84
  5. Step 5: Solve for x
    x = 921,926,603.84/30,650.64
  6. Step 6: Final answer
    x = 30,078.54

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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.