Home / 26,404.96-36,435.38-15,790.72

Finding the Fourth Proportional to 26,404.96, 36,435.38 and 15,790.72

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Solution

The fourth proportional to 26,404.96, 36,435.38 and 15,790.72 is: 21,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,404.96 : 36,435.38 = 15,790.72 : x
  2. Step 2: Convert to fraction form
    26,404.96/36,435.38 = 15,790.72/x
  3. Step 3: Cross multiply
    26,404.96x = 36,435.38 × 15,790.72
  4. Step 4: Simplify right side
    26,404.96x = 575,340,883.67
  5. Step 5: Solve for x
    x = 575,340,883.67/26,404.96
  6. Step 6: Final answer
    x = 21,789.12

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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.