Home / 26,866.18-40,244.40-12,783.60

Finding the Fourth Proportional to 26,866.18, 40,244.40 and 12,783.60

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Solution

The fourth proportional to 26,866.18, 40,244.40 and 12,783.60 is: 19,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,866.18 : 40,244.40 = 12,783.60 : x
  2. Step 2: Convert to fraction form
    26,866.18/40,244.40 = 12,783.60/x
  3. Step 3: Cross multiply
    26,866.18x = 40,244.40 × 12,783.60
  4. Step 4: Simplify right side
    26,866.18x = 514,468,311.84
  5. Step 5: Solve for x
    x = 514,468,311.84/26,866.18
  6. Step 6: Final answer
    x = 19,149.29

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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.