Home / 26,805.60-40,188.96-18,018.72

Finding the Fourth Proportional to 26,805.60, 40,188.96 and 18,018.72

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Solution

The fourth proportional to 26,805.60, 40,188.96 and 18,018.72 is: 27,015.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805.60 : 40,188.96 = 18,018.72 : x
  2. Step 2: Convert to fraction form
    26,805.60/40,188.96 = 18,018.72/x
  3. Step 3: Cross multiply
    26,805.60x = 40,188.96 × 18,018.72
  4. Step 4: Simplify right side
    26,805.60x = 724,153,617.33
  5. Step 5: Solve for x
    x = 724,153,617.33/26,805.60
  6. Step 6: Final answer
    x = 27,015.01

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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.