Home / 27,622.32-38,118.90-15,684.89

Finding the Fourth Proportional to 27,622.32, 38,118.90 and 15,684.89

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Solution

The fourth proportional to 27,622.32, 38,118.90 and 15,684.89 is: 21,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,622.32 : 38,118.90 = 15,684.89 : x
  2. Step 2: Convert to fraction form
    27,622.32/38,118.90 = 15,684.89/x
  3. Step 3: Cross multiply
    27,622.32x = 38,118.90 × 15,684.89
  4. Step 4: Simplify right side
    27,622.32x = 597,890,736.81
  5. Step 5: Solve for x
    x = 597,890,736.81/27,622.32
  6. Step 6: Final answer
    x = 21,645.20

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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.