Home / 30,921.59-42,669.33-18,175.23

Finding the Fourth Proportional to 30,921.59, 42,669.33 and 18,175.23

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Solution

The fourth proportional to 30,921.59, 42,669.33 and 18,175.23 is: 25,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.59 : 42,669.33 = 18,175.23 : x
  2. Step 2: Convert to fraction form
    30,921.59/42,669.33 = 18,175.23/x
  3. Step 3: Cross multiply
    30,921.59x = 42,669.33 × 18,175.23
  4. Step 4: Simplify right side
    30,921.59x = 775,524,886.70
  5. Step 5: Solve for x
    x = 775,524,886.70/30,921.59
  6. Step 6: Final answer
    x = 25,080.37

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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.