Home / 30,647-45,981.57-15,075.56

Finding the Fourth Proportional to 30,647, 45,981.57 and 15,075.56

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Solution

The fourth proportional to 30,647, 45,981.57 and 15,075.56 is: 22,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647 : 45,981.57 = 15,075.56 : x
  2. Step 2: Convert to fraction form
    30,647/45,981.57 = 15,075.56/x
  3. Step 3: Cross multiply
    30,647x = 45,981.57 × 15,075.56
  4. Step 4: Simplify right side
    30,647x = 693,197,917.43
  5. Step 5: Solve for x
    x = 693,197,917.43/30,647
  6. Step 6: Final answer
    x = 22,618.79

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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.