Home / 31,390.03-43,346.37-23,418.42

Finding the Fourth Proportional to 31,390.03, 43,346.37 and 23,418.42

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Solution

The fourth proportional to 31,390.03, 43,346.37 and 23,418.42 is: 32,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.03 : 43,346.37 = 23,418.42 : x
  2. Step 2: Convert to fraction form
    31,390.03/43,346.37 = 23,418.42/x
  3. Step 3: Cross multiply
    31,390.03x = 43,346.37 × 23,418.42
  4. Step 4: Simplify right side
    31,390.03x = 1,015,103,498.14
  5. Step 5: Solve for x
    x = 1,015,103,498.14/31,390.03
  6. Step 6: Final answer
    x = 32,338.40

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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.