Home / 20,790.24-31,167.68-9,094.72

Finding the Fourth Proportional to 20,790.24, 31,167.68 and 9,094.72

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Solution

The fourth proportional to 20,790.24, 31,167.68 and 9,094.72 is: 13,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790.24 : 31,167.68 = 9,094.72 : x
  2. Step 2: Convert to fraction form
    20,790.24/31,167.68 = 9,094.72/x
  3. Step 3: Cross multiply
    20,790.24x = 31,167.68 × 9,094.72
  4. Step 4: Simplify right side
    20,790.24x = 283,461,322.65
  5. Step 5: Solve for x
    x = 283,461,322.65/20,790.24
  6. Step 6: Final answer
    x = 13,634.35

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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.