Home / 30,390.64-41,958.33-20,846.51

Finding the Fourth Proportional to 30,390.64, 41,958.33 and 20,846.51

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Solution

The fourth proportional to 30,390.64, 41,958.33 and 20,846.51 is: 28,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.64 : 41,958.33 = 20,846.51 : x
  2. Step 2: Convert to fraction form
    30,390.64/41,958.33 = 20,846.51/x
  3. Step 3: Cross multiply
    30,390.64x = 41,958.33 × 20,846.51
  4. Step 4: Simplify right side
    30,390.64x = 874,684,536.14
  5. Step 5: Solve for x
    x = 874,684,536.14/30,390.64
  6. Step 6: Final answer
    x = 28,781.38

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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.