Home / 43,213.71-64,820.58-13,634.55

Finding the Fourth Proportional to 43,213.71, 64,820.58 and 13,634.55

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Solution

The fourth proportional to 43,213.71, 64,820.58 and 13,634.55 is: 20,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,213.71 : 64,820.58 = 13,634.55 : x
  2. Step 2: Convert to fraction form
    43,213.71/64,820.58 = 13,634.55/x
  3. Step 3: Cross multiply
    43,213.71x = 64,820.58 × 13,634.55
  4. Step 4: Simplify right side
    43,213.71x = 883,799,439.04
  5. Step 5: Solve for x
    x = 883,799,439.04/43,213.71
  6. Step 6: Final answer
    x = 20,451.83

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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.