Home / 44,128.41-66,221.78-20,756.67

Finding the Fourth Proportional to 44,128.41, 66,221.78 and 20,756.67

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Solution

The fourth proportional to 44,128.41, 66,221.78 and 20,756.67 is: 31,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,128.41 : 66,221.78 = 20,756.67 : x
  2. Step 2: Convert to fraction form
    44,128.41/66,221.78 = 20,756.67/x
  3. Step 3: Cross multiply
    44,128.41x = 66,221.78 × 20,756.67
  4. Step 4: Simplify right side
    44,128.41x = 1,374,543,282.16
  5. Step 5: Solve for x
    x = 1,374,543,282.16/44,128.41
  6. Step 6: Final answer
    x = 31,148.72

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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.