Home / 30,938.62-42,695.33-16,791.47

Finding the Fourth Proportional to 30,938.62, 42,695.33 and 16,791.47

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Solution

The fourth proportional to 30,938.62, 42,695.33 and 16,791.47 is: 23,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.62 : 42,695.33 = 16,791.47 : x
  2. Step 2: Convert to fraction form
    30,938.62/42,695.33 = 16,791.47/x
  3. Step 3: Cross multiply
    30,938.62x = 42,695.33 × 16,791.47
  4. Step 4: Simplify right side
    30,938.62x = 716,917,268.88
  5. Step 5: Solve for x
    x = 716,917,268.88/30,938.62
  6. Step 6: Final answer
    x = 23,172.24

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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.