Home / 32,812.62-45,273.48-20,871.60

Finding the Fourth Proportional to 32,812.62, 45,273.48 and 20,871.60

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Solution

The fourth proportional to 32,812.62, 45,273.48 and 20,871.60 is: 28,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,812.62 : 45,273.48 = 20,871.60 : x
  2. Step 2: Convert to fraction form
    32,812.62/45,273.48 = 20,871.60/x
  3. Step 3: Cross multiply
    32,812.62x = 45,273.48 × 20,871.60
  4. Step 4: Simplify right side
    32,812.62x = 944,929,965.17
  5. Step 5: Solve for x
    x = 944,929,965.17/32,812.62
  6. Step 6: Final answer
    x = 28,797.76

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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.