Home / 30,629.96-42,273.92-18,700.22

Finding the Fourth Proportional to 30,629.96, 42,273.92 and 18,700.22

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Solution

The fourth proportional to 30,629.96, 42,273.92 and 18,700.22 is: 25,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.96 : 42,273.92 = 18,700.22 : x
  2. Step 2: Convert to fraction form
    30,629.96/42,273.92 = 18,700.22/x
  3. Step 3: Cross multiply
    30,629.96x = 42,273.92 × 18,700.22
  4. Step 4: Simplify right side
    30,629.96x = 790,531,604.26
  5. Step 5: Solve for x
    x = 790,531,604.26/30,629.96
  6. Step 6: Final answer
    x = 25,809.10

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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.