Home / 21,579.25-32,376.66-7,541.35

Finding the Fourth Proportional to 21,579.25, 32,376.66 and 7,541.35

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Solution

The fourth proportional to 21,579.25, 32,376.66 and 7,541.35 is: 11,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.25 : 32,376.66 = 7,541.35 : x
  2. Step 2: Convert to fraction form
    21,579.25/32,376.66 = 7,541.35/x
  3. Step 3: Cross multiply
    21,579.25x = 32,376.66 × 7,541.35
  4. Step 4: Simplify right side
    21,579.25x = 244,163,724.89
  5. Step 5: Solve for x
    x = 244,163,724.89/21,579.25
  6. Step 6: Final answer
    x = 11,314.75

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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.