Home / 27,629.86-38,129.51-15,054.61

Finding the Fourth Proportional to 27,629.86, 38,129.51 and 15,054.61

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Solution

The fourth proportional to 27,629.86, 38,129.51 and 15,054.61 is: 20,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.86 : 38,129.51 = 15,054.61 : x
  2. Step 2: Convert to fraction form
    27,629.86/38,129.51 = 15,054.61/x
  3. Step 3: Cross multiply
    27,629.86x = 38,129.51 × 15,054.61
  4. Step 4: Simplify right side
    27,629.86x = 574,024,874.01
  5. Step 5: Solve for x
    x = 574,024,874.01/27,629.86
  6. Step 6: Final answer
    x = 20,775.53

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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.