Home / 26,390.10-36,416.88-20,091.54

Finding the Fourth Proportional to 26,390.10, 36,416.88 and 20,091.54

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Solution

The fourth proportional to 26,390.10, 36,416.88 and 20,091.54 is: 27,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.10 : 36,416.88 = 20,091.54 : x
  2. Step 2: Convert to fraction form
    26,390.10/36,416.88 = 20,091.54/x
  3. Step 3: Cross multiply
    26,390.10x = 36,416.88 × 20,091.54
  4. Step 4: Simplify right side
    26,390.10x = 731,671,201.20
  5. Step 5: Solve for x
    x = 731,671,201.20/26,390.10
  6. Step 6: Final answer
    x = 27,725.22

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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.