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Finding the Fourth Proportional to 30,743.40, 46,115.10 and 26,855.40

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Solution

The fourth proportional to 30,743.40, 46,115.10 and 26,855.40 is: 40,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743.40 : 46,115.10 = 26,855.40 : x
  2. Step 2: Convert to fraction form
    30,743.40/46,115.10 = 26,855.40/x
  3. Step 3: Cross multiply
    30,743.40x = 46,115.10 × 26,855.40
  4. Step 4: Simplify right side
    30,743.40x = 1,238,439,456.54
  5. Step 5: Solve for x
    x = 1,238,439,456.54/30,743.40
  6. Step 6: Final answer
    x = 40,283.10

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1.5x scale

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.