Home / 28,632.34-39,512.97-15,885.76

Finding the Fourth Proportional to 28,632.34, 39,512.97 and 15,885.76

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Solution

The fourth proportional to 28,632.34, 39,512.97 and 15,885.76 is: 21,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,632.34 : 39,512.97 = 15,885.76 : x
  2. Step 2: Convert to fraction form
    28,632.34/39,512.97 = 15,885.76/x
  3. Step 3: Cross multiply
    28,632.34x = 39,512.97 × 15,885.76
  4. Step 4: Simplify right side
    28,632.34x = 627,693,558.31
  5. Step 5: Solve for x
    x = 627,693,558.31/28,632.34
  6. Step 6: Final answer
    x = 21,922.54

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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.