Home / 39,528.82-54,549.74-21,623.76

Finding the Fourth Proportional to 39,528.82, 54,549.74 and 21,623.76

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Solution

The fourth proportional to 39,528.82, 54,549.74 and 21,623.76 is: 29,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,528.82 : 54,549.74 = 21,623.76 : x
  2. Step 2: Convert to fraction form
    39,528.82/54,549.74 = 21,623.76/x
  3. Step 3: Cross multiply
    39,528.82x = 54,549.74 × 21,623.76
  4. Step 4: Simplify right side
    39,528.82x = 1,179,570,485.82
  5. Step 5: Solve for x
    x = 1,179,570,485.82/39,528.82
  6. Step 6: Final answer
    x = 29,840.77

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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.