Home / 21,909.16-32,878.32-18,060.04

Finding the Fourth Proportional to 21,909.16, 32,878.32 and 18,060.04

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Solution

The fourth proportional to 21,909.16, 32,878.32 and 18,060.04 is: 27,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.16 : 32,878.32 = 18,060.04 : x
  2. Step 2: Convert to fraction form
    21,909.16/32,878.32 = 18,060.04/x
  3. Step 3: Cross multiply
    21,909.16x = 32,878.32 × 18,060.04
  4. Step 4: Simplify right side
    21,909.16x = 593,783,774.33
  5. Step 5: Solve for x
    x = 593,783,774.33/21,909.16
  6. Step 6: Final answer
    x = 27,102.08

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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.