Home / 15,820.42-21,839.34-10,163.38

Finding the Fourth Proportional to 15,820.42, 21,839.34 and 10,163.38

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Solution

The fourth proportional to 15,820.42, 21,839.34 and 10,163.38 is: 14,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.42 : 21,839.34 = 10,163.38 : x
  2. Step 2: Convert to fraction form
    15,820.42/21,839.34 = 10,163.38/x
  3. Step 3: Cross multiply
    15,820.42x = 21,839.34 × 10,163.38
  4. Step 4: Simplify right side
    15,820.42x = 221,961,511.37
  5. Step 5: Solve for x
    x = 221,961,511.37/15,820.42
  6. Step 6: Final answer
    x = 14,030.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.