Home / 20,302.36-28,008.92-12,343.32

Finding the Fourth Proportional to 20,302.36, 28,008.92 and 12,343.32

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Solution

The fourth proportional to 20,302.36, 28,008.92 and 12,343.32 is: 17,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.36 : 28,008.92 = 12,343.32 : x
  2. Step 2: Convert to fraction form
    20,302.36/28,008.92 = 12,343.32/x
  3. Step 3: Cross multiply
    20,302.36x = 28,008.92 × 12,343.32
  4. Step 4: Simplify right side
    20,302.36x = 345,723,062.41
  5. Step 5: Solve for x
    x = 345,723,062.41/20,302.36
  6. Step 6: Final answer
    x = 17,028.71

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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.