Home / 27,637.30-38,109.36-18,669.24

Finding the Fourth Proportional to 27,637.30, 38,109.36 and 18,669.24

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Solution

The fourth proportional to 27,637.30, 38,109.36 and 18,669.24 is: 25,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637.30 : 38,109.36 = 18,669.24 : x
  2. Step 2: Convert to fraction form
    27,637.30/38,109.36 = 18,669.24/x
  3. Step 3: Cross multiply
    27,637.30x = 38,109.36 × 18,669.24
  4. Step 4: Simplify right side
    27,637.30x = 711,472,788.09
  5. Step 5: Solve for x
    x = 711,472,788.09/27,637.30
  6. Step 6: Final answer
    x = 25,743.21

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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.