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Finding the Fourth Proportional to 39,265.50, 54,186.39 and 21,601.50

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Solution

The fourth proportional to 39,265.50, 54,186.39 and 21,601.50 is: 29,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,265.50 : 54,186.39 = 21,601.50 : x
  2. Step 2: Convert to fraction form
    39,265.50/54,186.39 = 21,601.50/x
  3. Step 3: Cross multiply
    39,265.50x = 54,186.39 × 21,601.50
  4. Step 4: Simplify right side
    39,265.50x = 1,170,507,303.59
  5. Step 5: Solve for x
    x = 1,170,507,303.59/39,265.50
  6. Step 6: Final answer
    x = 29,810.07

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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.