Home / 30,413.90-45,637.22-12,656.81

Finding the Fourth Proportional to 30,413.90, 45,637.22 and 12,656.81

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Solution

The fourth proportional to 30,413.90, 45,637.22 and 12,656.81 is: 18,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.90 : 45,637.22 = 12,656.81 : x
  2. Step 2: Convert to fraction form
    30,413.90/45,637.22 = 12,656.81/x
  3. Step 3: Cross multiply
    30,413.90x = 45,637.22 × 12,656.81
  4. Step 4: Simplify right side
    30,413.90x = 577,621,768.20
  5. Step 5: Solve for x
    x = 577,621,768.20/30,413.90
  6. Step 6: Final answer
    x = 18,992.03

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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.