Home / 25,756.41-38,584.48-18,989.67

Finding the Fourth Proportional to 25,756.41, 38,584.48 and 18,989.67

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Solution

The fourth proportional to 25,756.41, 38,584.48 and 18,989.67 is: 28,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,756.41 : 38,584.48 = 18,989.67 : x
  2. Step 2: Convert to fraction form
    25,756.41/38,584.48 = 18,989.67/x
  3. Step 3: Cross multiply
    25,756.41x = 38,584.48 × 18,989.67
  4. Step 4: Simplify right side
    25,756.41x = 732,706,542.32
  5. Step 5: Solve for x
    x = 732,706,542.32/25,756.41
  6. Step 6: Final answer
    x = 28,447.54

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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.