Home / 43,274.70-64,905.30-13,699.80

Finding the Fourth Proportional to 43,274.70, 64,905.30 and 13,699.80

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Solution

The fourth proportional to 43,274.70, 64,905.30 and 13,699.80 is: 20,547.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,274.70 : 64,905.30 = 13,699.80 : x
  2. Step 2: Convert to fraction form
    43,274.70/64,905.30 = 13,699.80/x
  3. Step 3: Cross multiply
    43,274.70x = 64,905.30 × 13,699.80
  4. Step 4: Simplify right side
    43,274.70x = 889,189,628.94
  5. Step 5: Solve for x
    x = 889,189,628.94/43,274.70
  6. Step 6: Final answer
    x = 20,547.56

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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.