Home / 20,627.85-28,447.62-17,447.82

Finding the Fourth Proportional to 20,627.85, 28,447.62 and 17,447.82

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Solution

The fourth proportional to 20,627.85, 28,447.62 and 17,447.82 is: 24,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.85 : 28,447.62 = 17,447.82 : x
  2. Step 2: Convert to fraction form
    20,627.85/28,447.62 = 17,447.82/x
  3. Step 3: Cross multiply
    20,627.85x = 28,447.62 × 17,447.82
  4. Step 4: Simplify right side
    20,627.85x = 496,348,953.19
  5. Step 5: Solve for x
    x = 496,348,953.19/20,627.85
  6. Step 6: Final answer
    x = 24,062.08

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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.