Home / 47,211.86-70,829.94-13,930.58

Finding the Fourth Proportional to 47,211.86, 70,829.94 and 13,930.58

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Solution

The fourth proportional to 47,211.86, 70,829.94 and 13,930.58 is: 20,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,211.86 : 70,829.94 = 13,930.58 : x
  2. Step 2: Convert to fraction form
    47,211.86/70,829.94 = 13,930.58/x
  3. Step 3: Cross multiply
    47,211.86x = 70,829.94 × 13,930.58
  4. Step 4: Simplify right side
    47,211.86x = 986,702,145.57
  5. Step 5: Solve for x
    x = 986,702,145.57/47,211.86
  6. Step 6: Final answer
    x = 20,899.46

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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.