Home / 21,200.22-29,061.75-21,004.20

Finding the Fourth Proportional to 21,200.22, 29,061.75 and 21,004.20

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Solution

The fourth proportional to 21,200.22, 29,061.75 and 21,004.20 is: 28,793.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.22 : 29,061.75 = 21,004.20 : x
  2. Step 2: Convert to fraction form
    21,200.22/29,061.75 = 21,004.20/x
  3. Step 3: Cross multiply
    21,200.22x = 29,061.75 × 21,004.20
  4. Step 4: Simplify right side
    21,200.22x = 610,418,809.35
  5. Step 5: Solve for x
    x = 610,418,809.35/21,200.22
  6. Step 6: Final answer
    x = 28,793.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.