Home / 47,820.97-65,998.66-28,711.45

Finding the Fourth Proportional to 47,820.97, 65,998.66 and 28,711.45

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Solution

The fourth proportional to 47,820.97, 65,998.66 and 28,711.45 is: 39,625.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,820.97 : 65,998.66 = 28,711.45 : x
  2. Step 2: Convert to fraction form
    47,820.97/65,998.66 = 28,711.45/x
  3. Step 3: Cross multiply
    47,820.97x = 65,998.66 × 28,711.45
  4. Step 4: Simplify right side
    47,820.97x = 1,894,917,226.66
  5. Step 5: Solve for x
    x = 1,894,917,226.66/47,820.97
  6. Step 6: Final answer
    x = 39,625.24

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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.