Home / 42,814.22-64,214.31-11,651.90

Finding the Fourth Proportional to 42,814.22, 64,214.31 and 11,651.90

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Solution

The fourth proportional to 42,814.22, 64,214.31 and 11,651.90 is: 17,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,814.22 : 64,214.31 = 11,651.90 : x
  2. Step 2: Convert to fraction form
    42,814.22/64,214.31 = 11,651.90/x
  3. Step 3: Cross multiply
    42,814.22x = 64,214.31 × 11,651.90
  4. Step 4: Simplify right side
    42,814.22x = 748,218,718.69
  5. Step 5: Solve for x
    x = 748,218,718.69/42,814.22
  6. Step 6: Final answer
    x = 17,475.94

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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.