Home / 43,287.15-64,936.80-13,701.90

Finding the Fourth Proportional to 43,287.15, 64,936.80 and 13,701.90

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Solution

The fourth proportional to 43,287.15, 64,936.80 and 13,701.90 is: 20,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287.15 : 64,936.80 = 13,701.90 : x
  2. Step 2: Convert to fraction form
    43,287.15/64,936.80 = 13,701.90/x
  3. Step 3: Cross multiply
    43,287.15x = 64,936.80 × 13,701.90
  4. Step 4: Simplify right side
    43,287.15x = 889,757,539.92
  5. Step 5: Solve for x
    x = 889,757,539.92/43,287.15
  6. Step 6: Final answer
    x = 20,554.77

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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.