Home / 26,205.40-39,306.30-8,435.80

Finding the Fourth Proportional to 26,205.40, 39,306.30 and 8,435.80

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Solution

The fourth proportional to 26,205.40, 39,306.30 and 8,435.80 is: 12,653.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,205.40 : 39,306.30 = 8,435.80 : x
  2. Step 2: Convert to fraction form
    26,205.40/39,306.30 = 8,435.80/x
  3. Step 3: Cross multiply
    26,205.40x = 39,306.30 × 8,435.80
  4. Step 4: Simplify right side
    26,205.40x = 331,580,085.54
  5. Step 5: Solve for x
    x = 331,580,085.54/26,205.40
  6. Step 6: Final answer
    x = 12,653.12

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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.