Home / 27,992.40-38,637.45-18,439.26

Finding the Fourth Proportional to 27,992.40, 38,637.45 and 18,439.26

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Solution

The fourth proportional to 27,992.40, 38,637.45 and 18,439.26 is: 25,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.40 : 38,637.45 = 18,439.26 : x
  2. Step 2: Convert to fraction form
    27,992.40/38,637.45 = 18,439.26/x
  3. Step 3: Cross multiply
    27,992.40x = 38,637.45 × 18,439.26
  4. Step 4: Simplify right side
    27,992.40x = 712,445,986.29
  5. Step 5: Solve for x
    x = 712,445,986.29/27,992.40
  6. Step 6: Final answer
    x = 25,451.41

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Half scale
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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.