Home / 30,331.78-41,847.99-16,900.45

Finding the Fourth Proportional to 30,331.78, 41,847.99 and 16,900.45

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Solution

The fourth proportional to 30,331.78, 41,847.99 and 16,900.45 is: 23,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.78 : 41,847.99 = 16,900.45 : x
  2. Step 2: Convert to fraction form
    30,331.78/41,847.99 = 16,900.45/x
  3. Step 3: Cross multiply
    30,331.78x = 41,847.99 × 16,900.45
  4. Step 4: Simplify right side
    30,331.78x = 707,249,862.60
  5. Step 5: Solve for x
    x = 707,249,862.60/30,331.78
  6. Step 6: Final answer
    x = 23,317.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.