Home / 26,636.61-36,759.72-15,309.78

Finding the Fourth Proportional to 26,636.61, 36,759.72 and 15,309.78

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Solution

The fourth proportional to 26,636.61, 36,759.72 and 15,309.78 is: 21,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,636.61 : 36,759.72 = 15,309.78 : x
  2. Step 2: Convert to fraction form
    26,636.61/36,759.72 = 15,309.78/x
  3. Step 3: Cross multiply
    26,636.61x = 36,759.72 × 15,309.78
  4. Step 4: Simplify right side
    26,636.61x = 562,783,226.06
  5. Step 5: Solve for x
    x = 562,783,226.06/26,636.61
  6. Step 6: Final answer
    x = 21,128.19

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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.