Home / 20,421.48-28,192.14-17,469.03

Finding the Fourth Proportional to 20,421.48, 28,192.14 and 17,469.03

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Solution

The fourth proportional to 20,421.48, 28,192.14 and 17,469.03 is: 24,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421.48 : 28,192.14 = 17,469.03 : x
  2. Step 2: Convert to fraction form
    20,421.48/28,192.14 = 17,469.03/x
  3. Step 3: Cross multiply
    20,421.48x = 28,192.14 × 17,469.03
  4. Step 4: Simplify right side
    20,421.48x = 492,489,339.42
  5. Step 5: Solve for x
    x = 492,489,339.42/20,421.48
  6. Step 6: Final answer
    x = 24,116.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.