Home / 27,629.64-38,129.13-15,054.12

Finding the Fourth Proportional to 27,629.64, 38,129.13 and 15,054.12

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Solution

The fourth proportional to 27,629.64, 38,129.13 and 15,054.12 is: 20,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.64 : 38,129.13 = 15,054.12 : x
  2. Step 2: Convert to fraction form
    27,629.64/38,129.13 = 15,054.12/x
  3. Step 3: Cross multiply
    27,629.64x = 38,129.13 × 15,054.12
  4. Step 4: Simplify right side
    27,629.64x = 574,000,498.52
  5. Step 5: Solve for x
    x = 574,000,498.52/27,629.64
  6. Step 6: Final answer
    x = 20,774.81

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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.