Home / 30,418.65-45,616.91-11,689.02

Finding the Fourth Proportional to 30,418.65, 45,616.91 and 11,689.02

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Solution

The fourth proportional to 30,418.65, 45,616.91 and 11,689.02 is: 17,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.65 : 45,616.91 = 11,689.02 : x
  2. Step 2: Convert to fraction form
    30,418.65/45,616.91 = 11,689.02/x
  3. Step 3: Cross multiply
    30,418.65x = 45,616.91 × 11,689.02
  4. Step 4: Simplify right side
    30,418.65x = 533,216,914.88
  5. Step 5: Solve for x
    x = 533,216,914.88/30,418.65
  6. Step 6: Final answer
    x = 17,529.28

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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.