Home / 39,523.65-54,541.35-21,618.80

Finding the Fourth Proportional to 39,523.65, 54,541.35 and 21,618.80

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Solution

The fourth proportional to 39,523.65, 54,541.35 and 21,618.80 is: 29,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,523.65 : 54,541.35 = 21,618.80 : x
  2. Step 2: Convert to fraction form
    39,523.65/54,541.35 = 21,618.80/x
  3. Step 3: Cross multiply
    39,523.65x = 54,541.35 × 21,618.80
  4. Step 4: Simplify right side
    39,523.65x = 1,179,118,469.20
  5. Step 5: Solve for x
    x = 1,179,118,469.20/39,523.65
  6. Step 6: Final answer
    x = 29,833.24

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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.