Home / 26,929.90-40,400.67-8,209.45

Finding the Fourth Proportional to 26,929.90, 40,400.67 and 8,209.45

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Solution

The fourth proportional to 26,929.90, 40,400.67 and 8,209.45 is: 12,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.90 : 40,400.67 = 8,209.45 : x
  2. Step 2: Convert to fraction form
    26,929.90/40,400.67 = 8,209.45/x
  3. Step 3: Cross multiply
    26,929.90x = 40,400.67 × 8,209.45
  4. Step 4: Simplify right side
    26,929.90x = 331,667,280.33
  5. Step 5: Solve for x
    x = 331,667,280.33/26,929.90
  6. Step 6: Final answer
    x = 12,315.95

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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.