Home / 18,260.38-25,176.48-15,239.84

Finding the Fourth Proportional to 18,260.38, 25,176.48 and 15,239.84

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Solution

The fourth proportional to 18,260.38, 25,176.48 and 15,239.84 is: 21,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.38 : 25,176.48 = 15,239.84 : x
  2. Step 2: Convert to fraction form
    18,260.38/25,176.48 = 15,239.84/x
  3. Step 3: Cross multiply
    18,260.38x = 25,176.48 × 15,239.84
  4. Step 4: Simplify right side
    18,260.38x = 383,685,526.96
  5. Step 5: Solve for x
    x = 383,685,526.96/18,260.38
  6. Step 6: Final answer
    x = 21,011.91

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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.