Home / 47,700.78-65,833.14-28,837.86

Finding the Fourth Proportional to 47,700.78, 65,833.14 and 28,837.86

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Solution

The fourth proportional to 47,700.78, 65,833.14 and 28,837.86 is: 39,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,700.78 : 65,833.14 = 28,837.86 : x
  2. Step 2: Convert to fraction form
    47,700.78/65,833.14 = 28,837.86/x
  3. Step 3: Cross multiply
    47,700.78x = 65,833.14 × 28,837.86
  4. Step 4: Simplify right side
    47,700.78x = 1,898,486,874.68
  5. Step 5: Solve for x
    x = 1,898,486,874.68/47,700.78
  6. Step 6: Final answer
    x = 39,799.91

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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.