Home / 21,543.09-32,315.03-6,751.68

Finding the Fourth Proportional to 21,543.09, 32,315.03 and 6,751.68

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Solution

The fourth proportional to 21,543.09, 32,315.03 and 6,751.68 is: 10,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.09 : 32,315.03 = 6,751.68 : x
  2. Step 2: Convert to fraction form
    21,543.09/32,315.03 = 6,751.68/x
  3. Step 3: Cross multiply
    21,543.09x = 32,315.03 × 6,751.68
  4. Step 4: Simplify right side
    21,543.09x = 218,180,741.75
  5. Step 5: Solve for x
    x = 218,180,741.75/21,543.09
  6. Step 6: Final answer
    x = 10,127.64

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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.