Home / 30,322.17-45,489.35-12,791.92

Finding the Fourth Proportional to 30,322.17, 45,489.35 and 12,791.92

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Solution

The fourth proportional to 30,322.17, 45,489.35 and 12,791.92 is: 19,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.17 : 45,489.35 = 12,791.92 : x
  2. Step 2: Convert to fraction form
    30,322.17/45,489.35 = 12,791.92/x
  3. Step 3: Cross multiply
    30,322.17x = 45,489.35 × 12,791.92
  4. Step 4: Simplify right side
    30,322.17x = 581,896,126.05
  5. Step 5: Solve for x
    x = 581,896,126.05/30,322.17
  6. Step 6: Final answer
    x = 19,190.45

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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.