Home / 25,633.11-38,447.95-12,315.64

Finding the Fourth Proportional to 25,633.11, 38,447.95 and 12,315.64

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Solution

The fourth proportional to 25,633.11, 38,447.95 and 12,315.64 is: 18,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,633.11 : 38,447.95 = 12,315.64 : x
  2. Step 2: Convert to fraction form
    25,633.11/38,447.95 = 12,315.64/x
  3. Step 3: Cross multiply
    25,633.11x = 38,447.95 × 12,315.64
  4. Step 4: Simplify right side
    25,633.11x = 473,511,110.94
  5. Step 5: Solve for x
    x = 473,511,110.94/25,633.11
  6. Step 6: Final answer
    x = 18,472.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.