Home / 43,612.08-65,394.24-13,618.08

Finding the Fourth Proportional to 43,612.08, 65,394.24 and 13,618.08

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Solution

The fourth proportional to 43,612.08, 65,394.24 and 13,618.08 is: 20,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,612.08 : 65,394.24 = 13,618.08 : x
  2. Step 2: Convert to fraction form
    43,612.08/65,394.24 = 13,618.08/x
  3. Step 3: Cross multiply
    43,612.08x = 65,394.24 × 13,618.08
  4. Step 4: Simplify right side
    43,612.08x = 890,543,991.86
  5. Step 5: Solve for x
    x = 890,543,991.86/43,612.08
  6. Step 6: Final answer
    x = 20,419.66

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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.