Home / 27,629.40-38,128.53-15,054.18

Finding the Fourth Proportional to 27,629.40, 38,128.53 and 15,054.18

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Solution

The fourth proportional to 27,629.40, 38,128.53 and 15,054.18 is: 20,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.40 : 38,128.53 = 15,054.18 : x
  2. Step 2: Convert to fraction form
    27,629.40/38,128.53 = 15,054.18/x
  3. Step 3: Cross multiply
    27,629.40x = 38,128.53 × 15,054.18
  4. Step 4: Simplify right side
    27,629.40x = 573,993,753.76
  5. Step 5: Solve for x
    x = 573,993,753.76/27,629.40
  6. Step 6: Final answer
    x = 20,774.75

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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.