Home / 19,428.06-26,820.41-12,723.96

Finding the Fourth Proportional to 19,428.06, 26,820.41 and 12,723.96

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Solution

The fourth proportional to 19,428.06, 26,820.41 and 12,723.96 is: 17,565.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.06 : 26,820.41 = 12,723.96 : x
  2. Step 2: Convert to fraction form
    19,428.06/26,820.41 = 12,723.96/x
  3. Step 3: Cross multiply
    19,428.06x = 26,820.41 × 12,723.96
  4. Step 4: Simplify right side
    19,428.06x = 341,261,760.40
  5. Step 5: Solve for x
    x = 341,261,760.40/19,428.06
  6. Step 6: Final answer
    x = 17,565.41

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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.