Home / 20,747.08-28,608.28-14,021.04

Finding the Fourth Proportional to 20,747.08, 28,608.28 and 14,021.04

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Solution

The fourth proportional to 20,747.08, 28,608.28 and 14,021.04 is: 19,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.08 : 28,608.28 = 14,021.04 : x
  2. Step 2: Convert to fraction form
    20,747.08/28,608.28 = 14,021.04/x
  3. Step 3: Cross multiply
    20,747.08x = 28,608.28 × 14,021.04
  4. Step 4: Simplify right side
    20,747.08x = 401,117,838.21
  5. Step 5: Solve for x
    x = 401,117,838.21/20,747.08
  6. Step 6: Final answer
    x = 19,333.70

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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.