Home / 28,186.44-42,266.88-10,643.82

Finding the Fourth Proportional to 28,186.44, 42,266.88 and 10,643.82

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Solution

The fourth proportional to 28,186.44, 42,266.88 and 10,643.82 is: 15,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.44 : 42,266.88 = 10,643.82 : x
  2. Step 2: Convert to fraction form
    28,186.44/42,266.88 = 10,643.82/x
  3. Step 3: Cross multiply
    28,186.44x = 42,266.88 × 10,643.82
  4. Step 4: Simplify right side
    28,186.44x = 449,881,062.68
  5. Step 5: Solve for x
    x = 449,881,062.68/28,186.44
  6. Step 6: Final answer
    x = 15,960.90

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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.