Home / 27,753.08-38,299.68-15,816.15

Finding the Fourth Proportional to 27,753.08, 38,299.68 and 15,816.15

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Solution

The fourth proportional to 27,753.08, 38,299.68 and 15,816.15 is: 21,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.08 : 38,299.68 = 15,816.15 : x
  2. Step 2: Convert to fraction form
    27,753.08/38,299.68 = 15,816.15/x
  3. Step 3: Cross multiply
    27,753.08x = 38,299.68 × 15,816.15
  4. Step 4: Simplify right side
    27,753.08x = 605,753,483.83
  5. Step 5: Solve for x
    x = 605,753,483.83/27,753.08
  6. Step 6: Final answer
    x = 21,826.54

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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.