Home / 26,887.52-40,331.28-8,419.52

Finding the Fourth Proportional to 26,887.52, 40,331.28 and 8,419.52

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Solution

The fourth proportional to 26,887.52, 40,331.28 and 8,419.52 is: 12,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,887.52 : 40,331.28 = 8,419.52 : x
  2. Step 2: Convert to fraction form
    26,887.52/40,331.28 = 8,419.52/x
  3. Step 3: Cross multiply
    26,887.52x = 40,331.28 × 8,419.52
  4. Step 4: Simplify right side
    26,887.52x = 339,570,018.59
  5. Step 5: Solve for x
    x = 339,570,018.59/26,887.52
  6. Step 6: Final answer
    x = 12,629.28

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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.