Home / 20,794.09-31,203.49-7,655.69

Finding the Fourth Proportional to 20,794.09, 31,203.49 and 7,655.69

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Solution

The fourth proportional to 20,794.09, 31,203.49 and 7,655.69 is: 11,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.09 : 31,203.49 = 7,655.69 : x
  2. Step 2: Convert to fraction form
    20,794.09/31,203.49 = 7,655.69/x
  3. Step 3: Cross multiply
    20,794.09x = 31,203.49 × 7,655.69
  4. Step 4: Simplify right side
    20,794.09x = 238,884,246.36
  5. Step 5: Solve for x
    x = 238,884,246.36/20,794.09
  6. Step 6: Final answer
    x = 11,488.08

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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.