Home / 26,404.80-36,436.48-15,790.56

Finding the Fourth Proportional to 26,404.80, 36,436.48 and 15,790.56

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Solution

The fourth proportional to 26,404.80, 36,436.48 and 15,790.56 is: 21,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,404.80 : 36,436.48 = 15,790.56 : x
  2. Step 2: Convert to fraction form
    26,404.80/36,436.48 = 15,790.56/x
  3. Step 3: Cross multiply
    26,404.80x = 36,436.48 × 15,790.56
  4. Step 4: Simplify right side
    26,404.80x = 575,352,423.63
  5. Step 5: Solve for x
    x = 575,352,423.63/26,404.80
  6. Step 6: Final answer
    x = 21,789.69

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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.