Home / 21,400.53-32,111.98-8,759.67

Finding the Fourth Proportional to 21,400.53, 32,111.98 and 8,759.67

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Solution

The fourth proportional to 21,400.53, 32,111.98 and 8,759.67 is: 13,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.53 : 32,111.98 = 8,759.67 : x
  2. Step 2: Convert to fraction form
    21,400.53/32,111.98 = 8,759.67/x
  3. Step 3: Cross multiply
    21,400.53x = 32,111.98 × 8,759.67
  4. Step 4: Simplify right side
    21,400.53x = 281,290,347.85
  5. Step 5: Solve for x
    x = 281,290,347.85/21,400.53
  6. Step 6: Final answer
    x = 13,144.08

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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.