Home / 21,802.14-30,083.34-12,848.43

Finding the Fourth Proportional to 21,802.14, 30,083.34 and 12,848.43

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Solution

The fourth proportional to 21,802.14, 30,083.34 and 12,848.43 is: 17,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.14 : 30,083.34 = 12,848.43 : x
  2. Step 2: Convert to fraction form
    21,802.14/30,083.34 = 12,848.43/x
  3. Step 3: Cross multiply
    21,802.14x = 30,083.34 × 12,848.43
  4. Step 4: Simplify right side
    21,802.14x = 386,523,688.16
  5. Step 5: Solve for x
    x = 386,523,688.16/21,802.14
  6. Step 6: Final answer
    x = 17,728.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.