Home / 22,455.56-33,661.32-19,131.32

Finding the Fourth Proportional to 22,455.56, 33,661.32 and 19,131.32

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Solution

The fourth proportional to 22,455.56, 33,661.32 and 19,131.32 is: 28,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.56 : 33,661.32 = 19,131.32 : x
  2. Step 2: Convert to fraction form
    22,455.56/33,661.32 = 19,131.32/x
  3. Step 3: Cross multiply
    22,455.56x = 33,661.32 × 19,131.32
  4. Step 4: Simplify right side
    22,455.56x = 643,985,484.54
  5. Step 5: Solve for x
    x = 643,985,484.54/22,455.56
  6. Step 6: Final answer
    x = 28,678.22

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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.