Home / 30,608.23-45,912.93-8,421.52

Finding the Fourth Proportional to 30,608.23, 45,912.93 and 8,421.52

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Solution

The fourth proportional to 30,608.23, 45,912.93 and 8,421.52 is: 12,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.23 : 45,912.93 = 8,421.52 : x
  2. Step 2: Convert to fraction form
    30,608.23/45,912.93 = 8,421.52/x
  3. Step 3: Cross multiply
    30,608.23x = 45,912.93 × 8,421.52
  4. Step 4: Simplify right side
    30,608.23x = 386,656,658.25
  5. Step 5: Solve for x
    x = 386,656,658.25/30,608.23
  6. Step 6: Final answer
    x = 12,632.44

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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.