Home / 28,765.24-43,147.60-7,417.86

Finding the Fourth Proportional to 28,765.24, 43,147.60 and 7,417.86

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Solution

The fourth proportional to 28,765.24, 43,147.60 and 7,417.86 is: 11,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.24 : 43,147.60 = 7,417.86 : x
  2. Step 2: Convert to fraction form
    28,765.24/43,147.60 = 7,417.86/x
  3. Step 3: Cross multiply
    28,765.24x = 43,147.60 × 7,417.86
  4. Step 4: Simplify right side
    28,765.24x = 320,062,856.14
  5. Step 5: Solve for x
    x = 320,062,856.14/28,765.24
  6. Step 6: Final answer
    x = 11,126.72

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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.