Home / 27,362.60-40,979.10-18,549.80

Finding the Fourth Proportional to 27,362.60, 40,979.10 and 18,549.80

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Solution

The fourth proportional to 27,362.60, 40,979.10 and 18,549.80 is: 27,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,362.60 : 40,979.10 = 18,549.80 : x
  2. Step 2: Convert to fraction form
    27,362.60/40,979.10 = 18,549.80/x
  3. Step 3: Cross multiply
    27,362.60x = 40,979.10 × 18,549.80
  4. Step 4: Simplify right side
    27,362.60x = 760,154,109.18
  5. Step 5: Solve for x
    x = 760,154,109.18/27,362.60
  6. Step 6: Final answer
    x = 27,780.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.