Home / 26,917.60-40,414.80-20,389.60

Finding the Fourth Proportional to 26,917.60, 40,414.80 and 20,389.60

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Solution

The fourth proportional to 26,917.60, 40,414.80 and 20,389.60 is: 30,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,917.60 : 40,414.80 = 20,389.60 : x
  2. Step 2: Convert to fraction form
    26,917.60/40,414.80 = 20,389.60/x
  3. Step 3: Cross multiply
    26,917.60x = 40,414.80 × 20,389.60
  4. Step 4: Simplify right side
    26,917.60x = 824,041,606.08
  5. Step 5: Solve for x
    x = 824,041,606.08/26,917.60
  6. Step 6: Final answer
    x = 30,613.49

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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.