Home / 43,589.13-65,383.69-12,423.57

Finding the Fourth Proportional to 43,589.13, 65,383.69 and 12,423.57

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Solution

The fourth proportional to 43,589.13, 65,383.69 and 12,423.57 is: 18,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,589.13 : 65,383.69 = 12,423.57 : x
  2. Step 2: Convert to fraction form
    43,589.13/65,383.69 = 12,423.57/x
  3. Step 3: Cross multiply
    43,589.13x = 65,383.69 × 12,423.57
  4. Step 4: Simplify right side
    43,589.13x = 812,298,460.54
  5. Step 5: Solve for x
    x = 812,298,460.54/43,589.13
  6. Step 6: Final answer
    x = 18,635.35

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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.