Home / 30,490.68-45,703.62-12,951.48

Finding the Fourth Proportional to 30,490.68, 45,703.62 and 12,951.48

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Solution

The fourth proportional to 30,490.68, 45,703.62 and 12,951.48 is: 19,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.68 : 45,703.62 = 12,951.48 : x
  2. Step 2: Convert to fraction form
    30,490.68/45,703.62 = 12,951.48/x
  3. Step 3: Cross multiply
    30,490.68x = 45,703.62 × 12,951.48
  4. Step 4: Simplify right side
    30,490.68x = 591,929,520.36
  5. Step 5: Solve for x
    x = 591,929,520.36/30,490.68
  6. Step 6: Final answer
    x = 19,413.46

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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.