Home / 26,977.10-37,218.63-15,640.36

Finding the Fourth Proportional to 26,977.10, 37,218.63 and 15,640.36

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Solution

The fourth proportional to 26,977.10, 37,218.63 and 15,640.36 is: 21,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,977.10 : 37,218.63 = 15,640.36 : x
  2. Step 2: Convert to fraction form
    26,977.10/37,218.63 = 15,640.36/x
  3. Step 3: Cross multiply
    26,977.10x = 37,218.63 × 15,640.36
  4. Step 4: Simplify right side
    26,977.10x = 582,112,678.86
  5. Step 5: Solve for x
    x = 582,112,678.86/26,977.10
  6. Step 6: Final answer
    x = 21,578.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.