Home / 25,345.16-38,020.62-7,819.40

Finding the Fourth Proportional to 25,345.16, 38,020.62 and 7,819.40

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Solution

The fourth proportional to 25,345.16, 38,020.62 and 7,819.40 is: 11,729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,345.16 : 38,020.62 = 7,819.40 : x
  2. Step 2: Convert to fraction form
    25,345.16/38,020.62 = 7,819.40/x
  3. Step 3: Cross multiply
    25,345.16x = 38,020.62 × 7,819.40
  4. Step 4: Simplify right side
    25,345.16x = 297,298,436.03
  5. Step 5: Solve for x
    x = 297,298,436.03/25,345.16
  6. Step 6: Final answer
    x = 11,729.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.