Home / 30,575.40-42,202.80-18,007.44

Finding the Fourth Proportional to 30,575.40, 42,202.80 and 18,007.44

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Solution

The fourth proportional to 30,575.40, 42,202.80 and 18,007.44 is: 24,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.40 : 42,202.80 = 18,007.44 : x
  2. Step 2: Convert to fraction form
    30,575.40/42,202.80 = 18,007.44/x
  3. Step 3: Cross multiply
    30,575.40x = 42,202.80 × 18,007.44
  4. Step 4: Simplify right side
    30,575.40x = 759,964,388.83
  5. Step 5: Solve for x
    x = 759,964,388.83/30,575.40
  6. Step 6: Final answer
    x = 24,855.42

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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.