Home / 30,469.35-42,065.87-19,148.43

Finding the Fourth Proportional to 30,469.35, 42,065.87 and 19,148.43

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Solution

The fourth proportional to 30,469.35, 42,065.87 and 19,148.43 is: 26,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.35 : 42,065.87 = 19,148.43 : x
  2. Step 2: Convert to fraction form
    30,469.35/42,065.87 = 19,148.43/x
  3. Step 3: Cross multiply
    30,469.35x = 42,065.87 × 19,148.43
  4. Step 4: Simplify right side
    30,469.35x = 805,495,367.08
  5. Step 5: Solve for x
    x = 805,495,367.08/30,469.35
  6. Step 6: Final answer
    x = 26,436.25

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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.