Home / 21,580.65-32,390.21-11,057.84

Finding the Fourth Proportional to 21,580.65, 32,390.21 and 11,057.84

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Solution

The fourth proportional to 21,580.65, 32,390.21 and 11,057.84 is: 16,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.65 : 32,390.21 = 11,057.84 : x
  2. Step 2: Convert to fraction form
    21,580.65/32,390.21 = 11,057.84/x
  3. Step 3: Cross multiply
    21,580.65x = 32,390.21 × 11,057.84
  4. Step 4: Simplify right side
    21,580.65x = 358,165,542.51
  5. Step 5: Solve for x
    x = 358,165,542.51/21,580.65
  6. Step 6: Final answer
    x = 16,596.61

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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.