Home / 39,505.68-54,518.63-21,601.80

Finding the Fourth Proportional to 39,505.68, 54,518.63 and 21,601.80

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Solution

The fourth proportional to 39,505.68, 54,518.63 and 21,601.80 is: 29,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,505.68 : 54,518.63 = 21,601.80 : x
  2. Step 2: Convert to fraction form
    39,505.68/54,518.63 = 21,601.80/x
  3. Step 3: Cross multiply
    39,505.68x = 54,518.63 × 21,601.80
  4. Step 4: Simplify right side
    39,505.68x = 1,177,700,433.53
  5. Step 5: Solve for x
    x = 1,177,700,433.53/39,505.68
  6. Step 6: Final answer
    x = 29,810.91

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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.