Home / 26,980.40-37,190.40-20,256.32

Finding the Fourth Proportional to 26,980.40, 37,190.40 and 20,256.32

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Solution

The fourth proportional to 26,980.40, 37,190.40 and 20,256.32 is: 27,921.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,980.40 : 37,190.40 = 20,256.32 : x
  2. Step 2: Convert to fraction form
    26,980.40/37,190.40 = 20,256.32/x
  3. Step 3: Cross multiply
    26,980.40x = 37,190.40 × 20,256.32
  4. Step 4: Simplify right side
    26,980.40x = 753,340,643.33
  5. Step 5: Solve for x
    x = 753,340,643.33/26,980.40
  6. Step 6: Final answer
    x = 27,921.77

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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.