Home / 25,759.38-38,638.98-9,120.36

Finding the Fourth Proportional to 25,759.38, 38,638.98 and 9,120.36

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Solution

The fourth proportional to 25,759.38, 38,638.98 and 9,120.36 is: 13,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,759.38 : 38,638.98 = 9,120.36 : x
  2. Step 2: Convert to fraction form
    25,759.38/38,638.98 = 9,120.36/x
  3. Step 3: Cross multiply
    25,759.38x = 38,638.98 × 9,120.36
  4. Step 4: Simplify right side
    25,759.38x = 352,401,407.63
  5. Step 5: Solve for x
    x = 352,401,407.63/25,759.38
  6. Step 6: Final answer
    x = 13,680.51

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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.