Home / 21,378.97-32,075.43-10,286.56

Finding the Fourth Proportional to 21,378.97, 32,075.43 and 10,286.56

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Solution

The fourth proportional to 21,378.97, 32,075.43 and 10,286.56 is: 15,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.97 : 32,075.43 = 10,286.56 : x
  2. Step 2: Convert to fraction form
    21,378.97/32,075.43 = 10,286.56/x
  3. Step 3: Cross multiply
    21,378.97x = 32,075.43 × 10,286.56
  4. Step 4: Simplify right side
    21,378.97x = 329,945,835.22
  5. Step 5: Solve for x
    x = 329,945,835.22/21,378.97
  6. Step 6: Final answer
    x = 15,433.20

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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.