Home / 27,778.83-38,332.89-15,842.67

Finding the Fourth Proportional to 27,778.83, 38,332.89 and 15,842.67

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Solution

The fourth proportional to 27,778.83, 38,332.89 and 15,842.67 is: 21,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.83 : 38,332.89 = 15,842.67 : x
  2. Step 2: Convert to fraction form
    27,778.83/38,332.89 = 15,842.67/x
  3. Step 3: Cross multiply
    27,778.83x = 38,332.89 × 15,842.67
  4. Step 4: Simplify right side
    27,778.83x = 607,295,326.42
  5. Step 5: Solve for x
    x = 607,295,326.42/27,778.83
  6. Step 6: Final answer
    x = 21,861.80

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Half scale
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Similar ratio
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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.