Home / 28,571.16-42,848.46-8,579.84

Finding the Fourth Proportional to 28,571.16, 42,848.46 and 8,579.84

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Solution

The fourth proportional to 28,571.16, 42,848.46 and 8,579.84 is: 12,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.16 : 42,848.46 = 8,579.84 : x
  2. Step 2: Convert to fraction form
    28,571.16/42,848.46 = 8,579.84/x
  3. Step 3: Cross multiply
    28,571.16x = 42,848.46 × 8,579.84
  4. Step 4: Simplify right side
    28,571.16x = 367,633,038.17
  5. Step 5: Solve for x
    x = 367,633,038.17/28,571.16
  6. Step 6: Final answer
    x = 12,867.28

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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.