Home / 20,989.04-28,944.90-16,201.34

Finding the Fourth Proportional to 20,989.04, 28,944.90 and 16,201.34

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Solution

The fourth proportional to 20,989.04, 28,944.90 and 16,201.34 is: 22,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,989.04 : 28,944.90 = 16,201.34 : x
  2. Step 2: Convert to fraction form
    20,989.04/28,944.90 = 16,201.34/x
  3. Step 3: Cross multiply
    20,989.04x = 28,944.90 × 16,201.34
  4. Step 4: Simplify right side
    20,989.04x = 468,946,166.17
  5. Step 5: Solve for x
    x = 468,946,166.17/20,989.04
  6. Step 6: Final answer
    x = 22,342.43

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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.