Home / 30,122.42-45,166.68-12,348.18

Finding the Fourth Proportional to 30,122.42, 45,166.68 and 12,348.18

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Solution

The fourth proportional to 30,122.42, 45,166.68 and 12,348.18 is: 18,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.42 : 45,166.68 = 12,348.18 : x
  2. Step 2: Convert to fraction form
    30,122.42/45,166.68 = 12,348.18/x
  3. Step 3: Cross multiply
    30,122.42x = 45,166.68 × 12,348.18
  4. Step 4: Simplify right side
    30,122.42x = 557,726,294.64
  5. Step 5: Solve for x
    x = 557,726,294.64/30,122.42
  6. Step 6: Final answer
    x = 18,515.32

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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.