Home / 25,672.05-38,482.56-8,128.67

Finding the Fourth Proportional to 25,672.05, 38,482.56 and 8,128.67

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Solution

The fourth proportional to 25,672.05, 38,482.56 and 8,128.67 is: 12,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,672.05 : 38,482.56 = 8,128.67 : x
  2. Step 2: Convert to fraction form
    25,672.05/38,482.56 = 8,128.67/x
  3. Step 3: Cross multiply
    25,672.05x = 38,482.56 × 8,128.67
  4. Step 4: Simplify right side
    25,672.05x = 312,811,838.58
  5. Step 5: Solve for x
    x = 312,811,838.58/25,672.05
  6. Step 6: Final answer
    x = 12,184.92

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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.