Home / 31,818.40-47,727.60-30,608.80

Finding the Fourth Proportional to 31,818.40, 47,727.60 and 30,608.80

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Solution

The fourth proportional to 31,818.40, 47,727.60 and 30,608.80 is: 45,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.40 : 47,727.60 = 30,608.80 : x
  2. Step 2: Convert to fraction form
    31,818.40/47,727.60 = 30,608.80/x
  3. Step 3: Cross multiply
    31,818.40x = 47,727.60 × 30,608.80
  4. Step 4: Simplify right side
    31,818.40x = 1,460,884,562.88
  5. Step 5: Solve for x
    x = 1,460,884,562.88/31,818.40
  6. Step 6: Final answer
    x = 45,913.20

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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.