Home / 19,239.42-28,868.26-13,325.40

Finding the Fourth Proportional to 19,239.42, 28,868.26 and 13,325.40

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Solution

The fourth proportional to 19,239.42, 28,868.26 and 13,325.40 is: 19,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.42 : 28,868.26 = 13,325.40 : x
  2. Step 2: Convert to fraction form
    19,239.42/28,868.26 = 13,325.40/x
  3. Step 3: Cross multiply
    19,239.42x = 28,868.26 × 13,325.40
  4. Step 4: Simplify right side
    19,239.42x = 384,681,236.72
  5. Step 5: Solve for x
    x = 384,681,236.72/19,239.42
  6. Step 6: Final answer
    x = 19,994.43

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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.