Home / 30,160.91-45,184.26-20,135.43

Finding the Fourth Proportional to 30,160.91, 45,184.26 and 20,135.43

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Solution

The fourth proportional to 30,160.91, 45,184.26 and 20,135.43 is: 30,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.91 : 45,184.26 = 20,135.43 : x
  2. Step 2: Convert to fraction form
    30,160.91/45,184.26 = 20,135.43/x
  3. Step 3: Cross multiply
    30,160.91x = 45,184.26 × 20,135.43
  4. Step 4: Simplify right side
    30,160.91x = 909,804,504.33
  5. Step 5: Solve for x
    x = 909,804,504.33/30,160.91
  6. Step 6: Final answer
    x = 30,165.02

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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.