Home / 20,393.62-28,141.58-12,325.64

Finding the Fourth Proportional to 20,393.62, 28,141.58 and 12,325.64

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Solution

The fourth proportional to 20,393.62, 28,141.58 and 12,325.64 is: 17,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.62 : 28,141.58 = 12,325.64 : x
  2. Step 2: Convert to fraction form
    20,393.62/28,141.58 = 12,325.64/x
  3. Step 3: Cross multiply
    20,393.62x = 28,141.58 × 12,325.64
  4. Step 4: Simplify right side
    20,393.62x = 346,863,085.28
  5. Step 5: Solve for x
    x = 346,863,085.28/20,393.62
  6. Step 6: Final answer
    x = 17,008.41

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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.