Home / 21,313.02-31,964.19-8,836.49

Finding the Fourth Proportional to 21,313.02, 31,964.19 and 8,836.49

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Solution

The fourth proportional to 21,313.02, 31,964.19 and 8,836.49 is: 13,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.02 : 31,964.19 = 8,836.49 : x
  2. Step 2: Convert to fraction form
    21,313.02/31,964.19 = 8,836.49/x
  3. Step 3: Cross multiply
    21,313.02x = 31,964.19 × 8,836.49
  4. Step 4: Simplify right side
    21,313.02x = 282,451,292.07
  5. Step 5: Solve for x
    x = 282,451,292.07/21,313.02
  6. Step 6: Final answer
    x = 13,252.52

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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.