Home / 21,578.11-32,370.35-11,054.08

Finding the Fourth Proportional to 21,578.11, 32,370.35 and 11,054.08

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Solution

The fourth proportional to 21,578.11, 32,370.35 and 11,054.08 is: 16,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.11 : 32,370.35 = 11,054.08 : x
  2. Step 2: Convert to fraction form
    21,578.11/32,370.35 = 11,054.08/x
  3. Step 3: Cross multiply
    21,578.11x = 32,370.35 × 11,054.08
  4. Step 4: Simplify right side
    21,578.11x = 357,824,438.53
  5. Step 5: Solve for x
    x = 357,824,438.53/21,578.11
  6. Step 6: Final answer
    x = 16,582.75

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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.