Home / 27,661.37-38,167.29-15,722.67

Finding the Fourth Proportional to 27,661.37, 38,167.29 and 15,722.67

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Solution

The fourth proportional to 27,661.37, 38,167.29 and 15,722.67 is: 21,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.37 : 38,167.29 = 15,722.67 : x
  2. Step 2: Convert to fraction form
    27,661.37/38,167.29 = 15,722.67/x
  3. Step 3: Cross multiply
    27,661.37x = 38,167.29 × 15,722.67
  4. Step 4: Simplify right side
    27,661.37x = 600,091,705.46
  5. Step 5: Solve for x
    x = 600,091,705.46/27,661.37
  6. Step 6: Final answer
    x = 21,694.22

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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.