Home / 47,711.40-65,847.86-28,848.54

Finding the Fourth Proportional to 47,711.40, 65,847.86 and 28,848.54

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Solution

The fourth proportional to 47,711.40, 65,847.86 and 28,848.54 is: 39,814.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,711.40 : 65,847.86 = 28,848.54 : x
  2. Step 2: Convert to fraction form
    47,711.40/65,847.86 = 28,848.54/x
  3. Step 3: Cross multiply
    47,711.40x = 65,847.86 × 28,848.54
  4. Step 4: Simplify right side
    47,711.40x = 1,899,614,623.12
  5. Step 5: Solve for x
    x = 1,899,614,623.12/47,711.40
  6. Step 6: Final answer
    x = 39,814.69

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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.