Home / 30,537.65-42,144.42-17,111.90

Finding the Fourth Proportional to 30,537.65, 42,144.42 and 17,111.90

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Solution

The fourth proportional to 30,537.65, 42,144.42 and 17,111.90 is: 23,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.65 : 42,144.42 = 17,111.90 : x
  2. Step 2: Convert to fraction form
    30,537.65/42,144.42 = 17,111.90/x
  3. Step 3: Cross multiply
    30,537.65x = 42,144.42 × 17,111.90
  4. Step 4: Simplify right side
    30,537.65x = 721,171,100.60
  5. Step 5: Solve for x
    x = 721,171,100.60/30,537.65
  6. Step 6: Final answer
    x = 23,615.80

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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.