Home / 30,575.82-42,195.05-18,474.62

Finding the Fourth Proportional to 30,575.82, 42,195.05 and 18,474.62

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Solution

The fourth proportional to 30,575.82, 42,195.05 and 18,474.62 is: 25,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.82 : 42,195.05 = 18,474.62 : x
  2. Step 2: Convert to fraction form
    30,575.82/42,195.05 = 18,474.62/x
  3. Step 3: Cross multiply
    30,575.82x = 42,195.05 × 18,474.62
  4. Step 4: Simplify right side
    30,575.82x = 779,537,514.63
  5. Step 5: Solve for x
    x = 779,537,514.63/30,575.82
  6. Step 6: Final answer
    x = 25,495.23

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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.