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Finding the Fourth Proportional to 30,808.40, 46,212.60 and 26,920.40

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Solution

The fourth proportional to 30,808.40, 46,212.60 and 26,920.40 is: 40,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.40 : 46,212.60 = 26,920.40 : x
  2. Step 2: Convert to fraction form
    30,808.40/46,212.60 = 26,920.40/x
  3. Step 3: Cross multiply
    30,808.40x = 46,212.60 × 26,920.40
  4. Step 4: Simplify right side
    30,808.40x = 1,244,061,677.04
  5. Step 5: Solve for x
    x = 1,244,061,677.04/30,808.40
  6. Step 6: Final answer
    x = 40,380.60

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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.