Home / 43,411.12-65,126.50-13,830.64

Finding the Fourth Proportional to 43,411.12, 65,126.50 and 13,830.64

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Solution

The fourth proportional to 43,411.12, 65,126.50 and 13,830.64 is: 20,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,411.12 : 65,126.50 = 13,830.64 : x
  2. Step 2: Convert to fraction form
    43,411.12/65,126.50 = 13,830.64/x
  3. Step 3: Cross multiply
    43,411.12x = 65,126.50 × 13,830.64
  4. Step 4: Simplify right side
    43,411.12x = 900,741,175.96
  5. Step 5: Solve for x
    x = 900,741,175.96/43,411.12
  6. Step 6: Final answer
    x = 20,749.09

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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.