Home / 28,533.09-42,776.44-11,905.51

Finding the Fourth Proportional to 28,533.09, 42,776.44 and 11,905.51

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Solution

The fourth proportional to 28,533.09, 42,776.44 and 11,905.51 is: 17,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.09 : 42,776.44 = 11,905.51 : x
  2. Step 2: Convert to fraction form
    28,533.09/42,776.44 = 11,905.51/x
  3. Step 3: Cross multiply
    28,533.09x = 42,776.44 × 11,905.51
  4. Step 4: Simplify right side
    28,533.09x = 509,275,334.18
  5. Step 5: Solve for x
    x = 509,275,334.18/28,533.09
  6. Step 6: Final answer
    x = 17,848.59

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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.