Home / 27,658.37-38,159.43-15,717.35

Finding the Fourth Proportional to 27,658.37, 38,159.43 and 15,717.35

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Solution

The fourth proportional to 27,658.37, 38,159.43 and 15,717.35 is: 21,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658.37 : 38,159.43 = 15,717.35 : x
  2. Step 2: Convert to fraction form
    27,658.37/38,159.43 = 15,717.35/x
  3. Step 3: Cross multiply
    27,658.37x = 38,159.43 × 15,717.35
  4. Step 4: Simplify right side
    27,658.37x = 599,765,117.11
  5. Step 5: Solve for x
    x = 599,765,117.11/27,658.37
  6. Step 6: Final answer
    x = 21,684.76

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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.