Home / 28,672.12-39,568.83-15,925.35

Finding the Fourth Proportional to 28,672.12, 39,568.83 and 15,925.35

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Solution

The fourth proportional to 28,672.12, 39,568.83 and 15,925.35 is: 21,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.12 : 39,568.83 = 15,925.35 : x
  2. Step 2: Convert to fraction form
    28,672.12/39,568.83 = 15,925.35/x
  3. Step 3: Cross multiply
    28,672.12x = 39,568.83 × 15,925.35
  4. Step 4: Simplify right side
    28,672.12x = 630,147,466.84
  5. Step 5: Solve for x
    x = 630,147,466.84/28,672.12
  6. Step 6: Final answer
    x = 21,977.71

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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.