Home / 30,396.12-45,588.39-12,878.25

Finding the Fourth Proportional to 30,396.12, 45,588.39 and 12,878.25

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Solution

The fourth proportional to 30,396.12, 45,588.39 and 12,878.25 is: 19,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.12 : 45,588.39 = 12,878.25 : x
  2. Step 2: Convert to fraction form
    30,396.12/45,588.39 = 12,878.25/x
  3. Step 3: Cross multiply
    30,396.12x = 45,588.39 × 12,878.25
  4. Step 4: Simplify right side
    30,396.12x = 587,098,683.52
  5. Step 5: Solve for x
    x = 587,098,683.52/30,396.12
  6. Step 6: Final answer
    x = 19,314.92

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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.