Home / 20,693.64-28,590.68-14,433.96

Finding the Fourth Proportional to 20,693.64, 28,590.68 and 14,433.96

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Solution

The fourth proportional to 20,693.64, 28,590.68 and 14,433.96 is: 19,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.64 : 28,590.68 = 14,433.96 : x
  2. Step 2: Convert to fraction form
    20,693.64/28,590.68 = 14,433.96/x
  3. Step 3: Cross multiply
    20,693.64x = 28,590.68 × 14,433.96
  4. Step 4: Simplify right side
    20,693.64x = 412,676,731.49
  5. Step 5: Solve for x
    x = 412,676,731.49/20,693.64
  6. Step 6: Final answer
    x = 19,942.20

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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.