Home / 31,483.26-43,441.38-18,908.28

Finding the Fourth Proportional to 31,483.26, 43,441.38 and 18,908.28

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Solution

The fourth proportional to 31,483.26, 43,441.38 and 18,908.28 is: 26,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483.26 : 43,441.38 = 18,908.28 : x
  2. Step 2: Convert to fraction form
    31,483.26/43,441.38 = 18,908.28/x
  3. Step 3: Cross multiply
    31,483.26x = 43,441.38 × 18,908.28
  4. Step 4: Simplify right side
    31,483.26x = 821,401,776.63
  5. Step 5: Solve for x
    x = 821,401,776.63/31,483.26
  6. Step 6: Final answer
    x = 26,090.11

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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.