Home / 39,517.02-54,533.12-21,611.84

Finding the Fourth Proportional to 39,517.02, 54,533.12 and 21,611.84

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Solution

The fourth proportional to 39,517.02, 54,533.12 and 21,611.84 is: 29,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.02 : 54,533.12 = 21,611.84 : x
  2. Step 2: Convert to fraction form
    39,517.02/54,533.12 = 21,611.84/x
  3. Step 3: Cross multiply
    39,517.02x = 54,533.12 × 21,611.84
  4. Step 4: Simplify right side
    39,517.02x = 1,178,560,683.42
  5. Step 5: Solve for x
    x = 1,178,560,683.42/39,517.02
  6. Step 6: Final answer
    x = 29,824.13

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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.