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Finding the Fourth Proportional to 30,355.84, 45,522.82 and 12,827.03

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Solution

The fourth proportional to 30,355.84, 45,522.82 and 12,827.03 is: 19,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,355.84 : 45,522.82 = 12,827.03 : x
  2. Step 2: Convert to fraction form
    30,355.84/45,522.82 = 12,827.03/x
  3. Step 3: Cross multiply
    30,355.84x = 45,522.82 × 12,827.03
  4. Step 4: Simplify right side
    30,355.84x = 583,922,513.69
  5. Step 5: Solve for x
    x = 583,922,513.69/30,355.84
  6. Step 6: Final answer
    x = 19,235.92

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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.