Home / 21,159.62-31,739.78-10,064.07

Finding the Fourth Proportional to 21,159.62, 31,739.78 and 10,064.07

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Solution

The fourth proportional to 21,159.62, 31,739.78 and 10,064.07 is: 15,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.62 : 31,739.78 = 10,064.07 : x
  2. Step 2: Convert to fraction form
    21,159.62/31,739.78 = 10,064.07/x
  3. Step 3: Cross multiply
    21,159.62x = 31,739.78 × 10,064.07
  4. Step 4: Simplify right side
    21,159.62x = 319,431,317.38
  5. Step 5: Solve for x
    x = 319,431,317.38/21,159.62
  6. Step 6: Final answer
    x = 15,096.27

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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.