Home / 19,268.34-28,903.50-5,418.42

Finding the Fourth Proportional to 19,268.34, 28,903.50 and 5,418.42

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Solution

The fourth proportional to 19,268.34, 28,903.50 and 5,418.42 is: 8,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.34 : 28,903.50 = 5,418.42 : x
  2. Step 2: Convert to fraction form
    19,268.34/28,903.50 = 5,418.42/x
  3. Step 3: Cross multiply
    19,268.34x = 28,903.50 × 5,418.42
  4. Step 4: Simplify right side
    19,268.34x = 156,611,302.47
  5. Step 5: Solve for x
    x = 156,611,302.47/19,268.34
  6. Step 6: Final answer
    x = 8,127.91

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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.