Home / 47,204.68-70,782.64-13,920.51

Finding the Fourth Proportional to 47,204.68, 70,782.64 and 13,920.51

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Solution

The fourth proportional to 47,204.68, 70,782.64 and 13,920.51 is: 20,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,204.68 : 70,782.64 = 13,920.51 : x
  2. Step 2: Convert to fraction form
    47,204.68/70,782.64 = 13,920.51/x
  3. Step 3: Cross multiply
    47,204.68x = 70,782.64 × 13,920.51
  4. Step 4: Simplify right side
    47,204.68x = 985,330,413.15
  5. Step 5: Solve for x
    x = 985,330,413.15/47,204.68
  6. Step 6: Final answer
    x = 20,873.58

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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.