Home / 30,140.30-45,204.26-11,413.86

Finding the Fourth Proportional to 30,140.30, 45,204.26 and 11,413.86

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Solution

The fourth proportional to 30,140.30, 45,204.26 and 11,413.86 is: 17,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.30 : 45,204.26 = 11,413.86 : x
  2. Step 2: Convert to fraction form
    30,140.30/45,204.26 = 11,413.86/x
  3. Step 3: Cross multiply
    30,140.30x = 45,204.26 × 11,413.86
  4. Step 4: Simplify right side
    30,140.30x = 515,955,095.04
  5. Step 5: Solve for x
    x = 515,955,095.04/30,140.30
  6. Step 6: Final answer
    x = 17,118.45

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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.