Home / 26,866.40-40,251.60-12,984.80

Finding the Fourth Proportional to 26,866.40, 40,251.60 and 12,984.80

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Solution

The fourth proportional to 26,866.40, 40,251.60 and 12,984.80 is: 19,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,866.40 : 40,251.60 = 12,984.80 : x
  2. Step 2: Convert to fraction form
    26,866.40/40,251.60 = 12,984.80/x
  3. Step 3: Cross multiply
    26,866.40x = 40,251.60 × 12,984.80
  4. Step 4: Simplify right side
    26,866.40x = 522,658,975.68
  5. Step 5: Solve for x
    x = 522,658,975.68/26,866.40
  6. Step 6: Final answer
    x = 19,454.00

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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.