Home / 30,996.29-42,775.06-18,250.04

Finding the Fourth Proportional to 30,996.29, 42,775.06 and 18,250.04

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Solution

The fourth proportional to 30,996.29, 42,775.06 and 18,250.04 is: 25,185.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,996.29 : 42,775.06 = 18,250.04 : x
  2. Step 2: Convert to fraction form
    30,996.29/42,775.06 = 18,250.04/x
  3. Step 3: Cross multiply
    30,996.29x = 42,775.06 × 18,250.04
  4. Step 4: Simplify right side
    30,996.29x = 780,646,296.50
  5. Step 5: Solve for x
    x = 780,646,296.50/30,996.29
  6. Step 6: Final answer
    x = 25,185.15

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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.