Home / 25,431.36-38,104.80-17,999.04

Finding the Fourth Proportional to 25,431.36, 38,104.80 and 17,999.04

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Solution

The fourth proportional to 25,431.36, 38,104.80 and 17,999.04 is: 26,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.36 : 38,104.80 = 17,999.04 : x
  2. Step 2: Convert to fraction form
    25,431.36/38,104.80 = 17,999.04/x
  3. Step 3: Cross multiply
    25,431.36x = 38,104.80 × 17,999.04
  4. Step 4: Simplify right side
    25,431.36x = 685,849,819.39
  5. Step 5: Solve for x
    x = 685,849,819.39/25,431.36
  6. Step 6: Final answer
    x = 26,968.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.