Home / 39,519.60-54,535.02-21,611.12

Finding the Fourth Proportional to 39,519.60, 54,535.02 and 21,611.12

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Solution

The fourth proportional to 39,519.60, 54,535.02 and 21,611.12 is: 29,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.60 : 54,535.02 = 21,611.12 : x
  2. Step 2: Convert to fraction form
    39,519.60/54,535.02 = 21,611.12/x
  3. Step 3: Cross multiply
    39,519.60x = 54,535.02 × 21,611.12
  4. Step 4: Simplify right side
    39,519.60x = 1,178,562,861.42
  5. Step 5: Solve for x
    x = 1,178,562,861.42/39,519.60
  6. Step 6: Final answer
    x = 29,822.24

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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.