Home / 47,143.08-70,657.74-20,817.96

Finding the Fourth Proportional to 47,143.08, 70,657.74 and 20,817.96

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Solution

The fourth proportional to 47,143.08, 70,657.74 and 20,817.96 is: 31,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.08 : 70,657.74 = 20,817.96 : x
  2. Step 2: Convert to fraction form
    47,143.08/70,657.74 = 20,817.96/x
  3. Step 3: Cross multiply
    47,143.08x = 70,657.74 × 20,817.96
  4. Step 4: Simplify right side
    47,143.08x = 1,470,950,005.01
  5. Step 5: Solve for x
    x = 1,470,950,005.01/47,143.08
  6. Step 6: Final answer
    x = 31,201.82

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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.