Home / 18,827.22-28,250.19-13,315.98

Finding the Fourth Proportional to 18,827.22, 28,250.19 and 13,315.98

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Solution

The fourth proportional to 18,827.22, 28,250.19 and 13,315.98 is: 19,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.22 : 28,250.19 = 13,315.98 : x
  2. Step 2: Convert to fraction form
    18,827.22/28,250.19 = 13,315.98/x
  3. Step 3: Cross multiply
    18,827.22x = 28,250.19 × 13,315.98
  4. Step 4: Simplify right side
    18,827.22x = 376,178,965.04
  5. Step 5: Solve for x
    x = 376,178,965.04/18,827.22
  6. Step 6: Final answer
    x = 19,980.59

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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.