Home / 28,579.84-42,865.44-11,047.48

Finding the Fourth Proportional to 28,579.84, 42,865.44 and 11,047.48

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Solution

The fourth proportional to 28,579.84, 42,865.44 and 11,047.48 is: 16,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.84 : 42,865.44 = 11,047.48 : x
  2. Step 2: Convert to fraction form
    28,579.84/42,865.44 = 11,047.48/x
  3. Step 3: Cross multiply
    28,579.84x = 42,865.44 × 11,047.48
  4. Step 4: Simplify right side
    28,579.84x = 473,555,091.09
  5. Step 5: Solve for x
    x = 473,555,091.09/28,579.84
  6. Step 6: Final answer
    x = 16,569.55

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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.