Home / 27,664.88-38,177.40-15,089.60

Finding the Fourth Proportional to 27,664.88, 38,177.40 and 15,089.60

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Solution

The fourth proportional to 27,664.88, 38,177.40 and 15,089.60 is: 20,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.88 : 38,177.40 = 15,089.60 : x
  2. Step 2: Convert to fraction form
    27,664.88/38,177.40 = 15,089.60/x
  3. Step 3: Cross multiply
    27,664.88x = 38,177.40 × 15,089.60
  4. Step 4: Simplify right side
    27,664.88x = 576,081,695.04
  5. Step 5: Solve for x
    x = 576,081,695.04/27,664.88
  6. Step 6: Final answer
    x = 20,823.57

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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.