Home / 30,606.12-42,235.02-18,028.44

Finding the Fourth Proportional to 30,606.12, 42,235.02 and 18,028.44

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Solution

The fourth proportional to 30,606.12, 42,235.02 and 18,028.44 is: 24,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,606.12 : 42,235.02 = 18,028.44 : x
  2. Step 2: Convert to fraction form
    30,606.12/42,235.02 = 18,028.44/x
  3. Step 3: Cross multiply
    30,606.12x = 42,235.02 × 18,028.44
  4. Step 4: Simplify right side
    30,606.12x = 761,431,523.97
  5. Step 5: Solve for x
    x = 761,431,523.97/30,606.12
  6. Step 6: Final answer
    x = 24,878.41

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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.