Home / 43,438.92-65,123.60-28,538.76

Finding the Fourth Proportional to 43,438.92, 65,123.60 and 28,538.76

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Solution

The fourth proportional to 43,438.92, 65,123.60 and 28,538.76 is: 42,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,438.92 : 65,123.60 = 28,538.76 : x
  2. Step 2: Convert to fraction form
    43,438.92/65,123.60 = 28,538.76/x
  3. Step 3: Cross multiply
    43,438.92x = 65,123.60 × 28,538.76
  4. Step 4: Simplify right side
    43,438.92x = 1,858,546,790.74
  5. Step 5: Solve for x
    x = 1,858,546,790.74/43,438.92
  6. Step 6: Final answer
    x = 42,785.29

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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.