Home / 21,313.76-31,975.48-6,523.84

Finding the Fourth Proportional to 21,313.76, 31,975.48 and 6,523.84

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Solution

The fourth proportional to 21,313.76, 31,975.48 and 6,523.84 is: 9,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.76 : 31,975.48 = 6,523.84 : x
  2. Step 2: Convert to fraction form
    21,313.76/31,975.48 = 6,523.84/x
  3. Step 3: Cross multiply
    21,313.76x = 31,975.48 × 6,523.84
  4. Step 4: Simplify right side
    21,313.76x = 208,602,915.44
  5. Step 5: Solve for x
    x = 208,602,915.44/21,313.76
  6. Step 6: Final answer
    x = 9,787.24

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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.