Home / 27,758.79-38,308.02-15,183.54

Finding the Fourth Proportional to 27,758.79, 38,308.02 and 15,183.54

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Solution

The fourth proportional to 27,758.79, 38,308.02 and 15,183.54 is: 20,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.79 : 38,308.02 = 15,183.54 : x
  2. Step 2: Convert to fraction form
    27,758.79/38,308.02 = 15,183.54/x
  3. Step 3: Cross multiply
    27,758.79x = 38,308.02 × 15,183.54
  4. Step 4: Simplify right side
    27,758.79x = 581,651,353.99
  5. Step 5: Solve for x
    x = 581,651,353.99/27,758.79
  6. Step 6: Final answer
    x = 20,953.77

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Half scale
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Double 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.