Home / 20,950.35-31,434.04-13,462.30

Finding the Fourth Proportional to 20,950.35, 31,434.04 and 13,462.30

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Solution

The fourth proportional to 20,950.35, 31,434.04 and 13,462.30 is: 20,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.35 : 31,434.04 = 13,462.30 : x
  2. Step 2: Convert to fraction form
    20,950.35/31,434.04 = 13,462.30/x
  3. Step 3: Cross multiply
    20,950.35x = 31,434.04 × 13,462.30
  4. Step 4: Simplify right side
    20,950.35x = 423,174,532.81
  5. Step 5: Solve for x
    x = 423,174,532.81/20,950.35
  6. Step 6: Final answer
    x = 20,198.93

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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.