Home / 43,218.32-64,821.92-11,631

Finding the Fourth Proportional to 43,218.32, 64,821.92 and 11,631

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Solution

The fourth proportional to 43,218.32, 64,821.92 and 11,631 is: 17,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,218.32 : 64,821.92 = 11,631 : x
  2. Step 2: Convert to fraction form
    43,218.32/64,821.92 = 11,631/x
  3. Step 3: Cross multiply
    43,218.32x = 64,821.92 × 11,631
  4. Step 4: Simplify right side
    43,218.32x = 753,943,751.52
  5. Step 5: Solve for x
    x = 753,943,751.52/43,218.32
  6. Step 6: Final answer
    x = 17,445.00

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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.