Home / 20,045.21-30,034.49-14,109.66

Finding the Fourth Proportional to 20,045.21, 30,034.49 and 14,109.66

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Solution

The fourth proportional to 20,045.21, 30,034.49 and 14,109.66 is: 21,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.21 : 30,034.49 = 14,109.66 : x
  2. Step 2: Convert to fraction form
    20,045.21/30,034.49 = 14,109.66/x
  3. Step 3: Cross multiply
    20,045.21x = 30,034.49 × 14,109.66
  4. Step 4: Simplify right side
    20,045.21x = 423,776,371.63
  5. Step 5: Solve for x
    x = 423,776,371.63/20,045.21
  6. Step 6: Final answer
    x = 21,141.03

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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.