Home / 47,420.13-71,130.20-14,163.56

Finding the Fourth Proportional to 47,420.13, 71,130.20 and 14,163.56

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Solution

The fourth proportional to 47,420.13, 71,130.20 and 14,163.56 is: 21,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.13 : 71,130.20 = 14,163.56 : x
  2. Step 2: Convert to fraction form
    47,420.13/71,130.20 = 14,163.56/x
  3. Step 3: Cross multiply
    47,420.13x = 71,130.20 × 14,163.56
  4. Step 4: Simplify right side
    47,420.13x = 1,007,456,429.04
  5. Step 5: Solve for x
    x = 1,007,456,429.04/47,420.13
  6. Step 6: Final answer
    x = 21,245.33

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1.5x scale

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.