Home / 39,810.18-54,939.36-22,817.64

Finding the Fourth Proportional to 39,810.18, 54,939.36 and 22,817.64

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Solution

The fourth proportional to 39,810.18, 54,939.36 and 22,817.64 is: 31,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.18 : 54,939.36 = 22,817.64 : x
  2. Step 2: Convert to fraction form
    39,810.18/54,939.36 = 22,817.64/x
  3. Step 3: Cross multiply
    39,810.18x = 54,939.36 × 22,817.64
  4. Step 4: Simplify right side
    39,810.18x = 1,253,586,538.31
  5. Step 5: Solve for x
    x = 1,253,586,538.31/39,810.18
  6. Step 6: Final answer
    x = 31,489.09

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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.