Home / 43,209.80-64,814.70-13,629.94

Finding the Fourth Proportional to 43,209.80, 64,814.70 and 13,629.94

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Solution

The fourth proportional to 43,209.80, 64,814.70 and 13,629.94 is: 20,444.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,209.80 : 64,814.70 = 13,629.94 : x
  2. Step 2: Convert to fraction form
    43,209.80/64,814.70 = 13,629.94/x
  3. Step 3: Cross multiply
    43,209.80x = 64,814.70 × 13,629.94
  4. Step 4: Simplify right side
    43,209.80x = 883,420,472.12
  5. Step 5: Solve for x
    x = 883,420,472.12/43,209.80
  6. Step 6: Final answer
    x = 20,444.91

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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.