Home / 43,011.30-64,454.43-18,966.36

Finding the Fourth Proportional to 43,011.30, 64,454.43 and 18,966.36

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Solution

The fourth proportional to 43,011.30, 64,454.43 and 18,966.36 is: 28,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,011.30 : 64,454.43 = 18,966.36 : x
  2. Step 2: Convert to fraction form
    43,011.30/64,454.43 = 18,966.36/x
  3. Step 3: Cross multiply
    43,011.30x = 64,454.43 × 18,966.36
  4. Step 4: Simplify right side
    43,011.30x = 1,222,465,922.97
  5. Step 5: Solve for x
    x = 1,222,465,922.97/43,011.30
  6. Step 6: Final answer
    x = 28,421.97

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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.