Home / 28,653.14-42,981.72-11,996.36

Finding the Fourth Proportional to 28,653.14, 42,981.72 and 11,996.36

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Solution

The fourth proportional to 28,653.14, 42,981.72 and 11,996.36 is: 17,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.14 : 42,981.72 = 11,996.36 : x
  2. Step 2: Convert to fraction form
    28,653.14/42,981.72 = 11,996.36/x
  3. Step 3: Cross multiply
    28,653.14x = 42,981.72 × 11,996.36
  4. Step 4: Simplify right side
    28,653.14x = 515,624,186.54
  5. Step 5: Solve for x
    x = 515,624,186.54/28,653.14
  6. Step 6: Final answer
    x = 17,995.38

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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.