Home / 30,566.08-42,181.20-17,137.36

Finding the Fourth Proportional to 30,566.08, 42,181.20 and 17,137.36

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Solution

The fourth proportional to 30,566.08, 42,181.20 and 17,137.36 is: 23,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,566.08 : 42,181.20 = 17,137.36 : x
  2. Step 2: Convert to fraction form
    30,566.08/42,181.20 = 17,137.36/x
  3. Step 3: Cross multiply
    30,566.08x = 42,181.20 × 17,137.36
  4. Step 4: Simplify right side
    30,566.08x = 722,874,409.63
  5. Step 5: Solve for x
    x = 722,874,409.63/30,566.08
  6. Step 6: Final answer
    x = 23,649.56

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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.