Home / 43,565.28-65,319.84-18,621.60

Finding the Fourth Proportional to 43,565.28, 65,319.84 and 18,621.60

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Solution

The fourth proportional to 43,565.28, 65,319.84 and 18,621.60 is: 27,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,565.28 : 65,319.84 = 18,621.60 : x
  2. Step 2: Convert to fraction form
    43,565.28/65,319.84 = 18,621.60/x
  3. Step 3: Cross multiply
    43,565.28x = 65,319.84 × 18,621.60
  4. Step 4: Simplify right side
    43,565.28x = 1,216,359,932.54
  5. Step 5: Solve for x
    x = 1,216,359,932.54/43,565.28
  6. Step 6: Final answer
    x = 27,920.40

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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.