Home / 21,480.90-32,212.14-11,617.50

Finding the Fourth Proportional to 21,480.90, 32,212.14 and 11,617.50

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Solution

The fourth proportional to 21,480.90, 32,212.14 and 11,617.50 is: 17,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.90 : 32,212.14 = 11,617.50 : x
  2. Step 2: Convert to fraction form
    21,480.90/32,212.14 = 11,617.50/x
  3. Step 3: Cross multiply
    21,480.90x = 32,212.14 × 11,617.50
  4. Step 4: Simplify right side
    21,480.90x = 374,224,536.45
  5. Step 5: Solve for x
    x = 374,224,536.45/21,480.90
  6. Step 6: Final answer
    x = 17,421.27

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1.5x scale

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.