Home / 47,278.95-70,928.94-20,629.26

Finding the Fourth Proportional to 47,278.95, 70,928.94 and 20,629.26

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Solution

The fourth proportional to 47,278.95, 70,928.94 and 20,629.26 is: 30,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,278.95 : 70,928.94 = 20,629.26 : x
  2. Step 2: Convert to fraction form
    47,278.95/70,928.94 = 20,629.26/x
  3. Step 3: Cross multiply
    47,278.95x = 70,928.94 × 20,629.26
  4. Step 4: Simplify right side
    47,278.95x = 1,463,211,544.78
  5. Step 5: Solve for x
    x = 1,463,211,544.78/47,278.95
  6. Step 6: Final answer
    x = 30,948.48

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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.