Home / 20,356.09-30,672.80-16,739.34

Finding the Fourth Proportional to 20,356.09, 30,672.80 and 16,739.34

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Solution

The fourth proportional to 20,356.09, 30,672.80 and 16,739.34 is: 25,223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.09 : 30,672.80 = 16,739.34 : x
  2. Step 2: Convert to fraction form
    20,356.09/30,672.80 = 16,739.34/x
  3. Step 3: Cross multiply
    20,356.09x = 30,672.80 × 16,739.34
  4. Step 4: Simplify right side
    20,356.09x = 513,442,372.19
  5. Step 5: Solve for x
    x = 513,442,372.19/20,356.09
  6. Step 6: Final answer
    x = 25,223.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.