Home / 26,881.20-40,266.90-12,798.60

Finding the Fourth Proportional to 26,881.20, 40,266.90 and 12,798.60

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Solution

The fourth proportional to 26,881.20, 40,266.90 and 12,798.60 is: 19,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.20 : 40,266.90 = 12,798.60 : x
  2. Step 2: Convert to fraction form
    26,881.20/40,266.90 = 12,798.60/x
  3. Step 3: Cross multiply
    26,881.20x = 40,266.90 × 12,798.60
  4. Step 4: Simplify right side
    26,881.20x = 515,359,946.34
  5. Step 5: Solve for x
    x = 515,359,946.34/26,881.20
  6. Step 6: Final answer
    x = 19,171.76

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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.