Home / 47,445.68-71,188.30-20,810.81

Finding the Fourth Proportional to 47,445.68, 71,188.30 and 20,810.81

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Solution

The fourth proportional to 47,445.68, 71,188.30 and 20,810.81 is: 31,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,445.68 : 71,188.30 = 20,810.81 : x
  2. Step 2: Convert to fraction form
    47,445.68/71,188.30 = 20,810.81/x
  3. Step 3: Cross multiply
    47,445.68x = 71,188.30 × 20,810.81
  4. Step 4: Simplify right side
    47,445.68x = 1,481,486,185.52
  5. Step 5: Solve for x
    x = 1,481,486,185.52/47,445.68
  6. Step 6: Final answer
    x = 31,224.89

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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.