Home / 21,802.01-30,084.35-12,239.96

Finding the Fourth Proportional to 21,802.01, 30,084.35 and 12,239.96

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Solution

The fourth proportional to 21,802.01, 30,084.35 and 12,239.96 is: 16,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.01 : 30,084.35 = 12,239.96 : x
  2. Step 2: Convert to fraction form
    21,802.01/30,084.35 = 12,239.96/x
  3. Step 3: Cross multiply
    21,802.01x = 30,084.35 × 12,239.96
  4. Step 4: Simplify right side
    21,802.01x = 368,231,029.00
  5. Step 5: Solve for x
    x = 368,231,029.00/21,802.01
  6. Step 6: Final answer
    x = 16,889.78

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1.5x scale

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.