Home / 39,566.05-54,601.80-21,660.76

Finding the Fourth Proportional to 39,566.05, 54,601.80 and 21,660.76

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Solution

The fourth proportional to 39,566.05, 54,601.80 and 21,660.76 is: 29,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,566.05 : 54,601.80 = 21,660.76 : x
  2. Step 2: Convert to fraction form
    39,566.05/54,601.80 = 21,660.76/x
  3. Step 3: Cross multiply
    39,566.05x = 54,601.80 × 21,660.76
  4. Step 4: Simplify right side
    39,566.05x = 1,182,716,485.37
  5. Step 5: Solve for x
    x = 1,182,716,485.37/39,566.05
  6. Step 6: Final answer
    x = 29,892.21

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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.