Home / 20,464.07-30,687.14-10,326.21

Finding the Fourth Proportional to 20,464.07, 30,687.14 and 10,326.21

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Solution

The fourth proportional to 20,464.07, 30,687.14 and 10,326.21 is: 15,484.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.07 : 30,687.14 = 10,326.21 : x
  2. Step 2: Convert to fraction form
    20,464.07/30,687.14 = 10,326.21/x
  3. Step 3: Cross multiply
    20,464.07x = 30,687.14 × 10,326.21
  4. Step 4: Simplify right side
    20,464.07x = 316,881,800.31
  5. Step 5: Solve for x
    x = 316,881,800.31/20,464.07
  6. Step 6: Final answer
    x = 15,484.79

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1.5x scale

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.