Home / 27,809.96-38,343.30-18,363.56

Finding the Fourth Proportional to 27,809.96, 38,343.30 and 18,363.56

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Solution

The fourth proportional to 27,809.96, 38,343.30 and 18,363.56 is: 25,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.96 : 38,343.30 = 18,363.56 : x
  2. Step 2: Convert to fraction form
    27,809.96/38,343.30 = 18,363.56/x
  3. Step 3: Cross multiply
    27,809.96x = 38,343.30 × 18,363.56
  4. Step 4: Simplify right side
    27,809.96x = 704,119,490.15
  5. Step 5: Solve for x
    x = 704,119,490.15/27,809.96
  6. Step 6: Final answer
    x = 25,318.97

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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.