Home / 31,347.20-47,020.80-29,273.60

Finding the Fourth Proportional to 31,347.20, 47,020.80 and 29,273.60

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Solution

The fourth proportional to 31,347.20, 47,020.80 and 29,273.60 is: 43,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.20 : 47,020.80 = 29,273.60 : x
  2. Step 2: Convert to fraction form
    31,347.20/47,020.80 = 29,273.60/x
  3. Step 3: Cross multiply
    31,347.20x = 47,020.80 × 29,273.60
  4. Step 4: Simplify right side
    31,347.20x = 1,376,468,090.88
  5. Step 5: Solve for x
    x = 1,376,468,090.88/31,347.20
  6. Step 6: Final answer
    x = 43,910.40

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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.