Home / 32,760.20-45,218.81-21,274.80

Finding the Fourth Proportional to 32,760.20, 45,218.81 and 21,274.80

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Solution

The fourth proportional to 32,760.20, 45,218.81 and 21,274.80 is: 29,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,760.20 : 45,218.81 = 21,274.80 : x
  2. Step 2: Convert to fraction form
    32,760.20/45,218.81 = 21,274.80/x
  3. Step 3: Cross multiply
    32,760.20x = 45,218.81 × 21,274.80
  4. Step 4: Simplify right side
    32,760.20x = 962,021,032.61
  5. Step 5: Solve for x
    x = 962,021,032.61/32,760.20
  6. Step 6: Final answer
    x = 29,365.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.