Home / 27,637.18-38,109.19-18,669.11

Finding the Fourth Proportional to 27,637.18, 38,109.19 and 18,669.11

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Solution

The fourth proportional to 27,637.18, 38,109.19 and 18,669.11 is: 25,743.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637.18 : 38,109.19 = 18,669.11 : x
  2. Step 2: Convert to fraction form
    27,637.18/38,109.19 = 18,669.11/x
  3. Step 3: Cross multiply
    27,637.18x = 38,109.19 × 18,669.11
  4. Step 4: Simplify right side
    27,637.18x = 711,464,566.78
  5. Step 5: Solve for x
    x = 711,464,566.78/27,637.18
  6. Step 6: Final answer
    x = 25,743.03

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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.