Home / 43,165.68-64,748.43-13,586.10

Finding the Fourth Proportional to 43,165.68, 64,748.43 and 13,586.10

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Solution

The fourth proportional to 43,165.68, 64,748.43 and 13,586.10 is: 20,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,165.68 : 64,748.43 = 13,586.10 : x
  2. Step 2: Convert to fraction form
    43,165.68/64,748.43 = 13,586.10/x
  3. Step 3: Cross multiply
    43,165.68x = 64,748.43 × 13,586.10
  4. Step 4: Simplify right side
    43,165.68x = 879,678,644.82
  5. Step 5: Solve for x
    x = 879,678,644.82/43,165.68
  6. Step 6: Final answer
    x = 20,379.12

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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.