Home / 30,149.42-41,603.40-16,720.43

Finding the Fourth Proportional to 30,149.42, 41,603.40 and 16,720.43

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Solution

The fourth proportional to 30,149.42, 41,603.40 and 16,720.43 is: 23,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.42 : 41,603.40 = 16,720.43 : x
  2. Step 2: Convert to fraction form
    30,149.42/41,603.40 = 16,720.43/x
  3. Step 3: Cross multiply
    30,149.42x = 41,603.40 × 16,720.43
  4. Step 4: Simplify right side
    30,149.42x = 695,626,529.45
  5. Step 5: Solve for x
    x = 695,626,529.45/30,149.42
  6. Step 6: Final answer
    x = 23,072.64

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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.