Home / 47,143.37-70,698.05-13,854.53

Finding the Fourth Proportional to 47,143.37, 70,698.05 and 13,854.53

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Solution

The fourth proportional to 47,143.37, 70,698.05 and 13,854.53 is: 20,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.37 : 70,698.05 = 13,854.53 : x
  2. Step 2: Convert to fraction form
    47,143.37/70,698.05 = 13,854.53/x
  3. Step 3: Cross multiply
    47,143.37x = 70,698.05 × 13,854.53
  4. Step 4: Simplify right side
    47,143.37x = 979,488,185.39
  5. Step 5: Solve for x
    x = 979,488,185.39/47,143.37
  6. Step 6: Final answer
    x = 20,776.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.