Home / 21,283.56-29,369.13-12,333.93

Finding the Fourth Proportional to 21,283.56, 29,369.13 and 12,333.93

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Solution

The fourth proportional to 21,283.56, 29,369.13 and 12,333.93 is: 17,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.56 : 29,369.13 = 12,333.93 : x
  2. Step 2: Convert to fraction form
    21,283.56/29,369.13 = 12,333.93/x
  3. Step 3: Cross multiply
    21,283.56x = 29,369.13 × 12,333.93
  4. Step 4: Simplify right side
    21,283.56x = 362,236,793.58
  5. Step 5: Solve for x
    x = 362,236,793.58/21,283.56
  6. Step 6: Final answer
    x = 17,019.56

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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.