Home / 30,830.63-42,546.26-16,683.47

Finding the Fourth Proportional to 30,830.63, 42,546.26 and 16,683.47

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Solution

The fourth proportional to 30,830.63, 42,546.26 and 16,683.47 is: 23,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830.63 : 42,546.26 = 16,683.47 : x
  2. Step 2: Convert to fraction form
    30,830.63/42,546.26 = 16,683.47/x
  3. Step 3: Cross multiply
    30,830.63x = 42,546.26 × 16,683.47
  4. Step 4: Simplify right side
    30,830.63x = 709,819,240.85
  5. Step 5: Solve for x
    x = 709,819,240.85/30,830.63
  6. Step 6: Final answer
    x = 23,023.19

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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.