Home / 30,389.12-45,577.88-12,871.26

Finding the Fourth Proportional to 30,389.12, 45,577.88 and 12,871.26

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Solution

The fourth proportional to 30,389.12, 45,577.88 and 12,871.26 is: 19,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.12 : 45,577.88 = 12,871.26 : x
  2. Step 2: Convert to fraction form
    30,389.12/45,577.88 = 12,871.26/x
  3. Step 3: Cross multiply
    30,389.12x = 45,577.88 × 12,871.26
  4. Step 4: Simplify right side
    30,389.12x = 586,644,743.73
  5. Step 5: Solve for x
    x = 586,644,743.73/30,389.12
  6. Step 6: Final answer
    x = 19,304.43

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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.