Home / 20,668.01-28,471.23-14,986.06

Finding the Fourth Proportional to 20,668.01, 28,471.23 and 14,986.06

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Solution

The fourth proportional to 20,668.01, 28,471.23 and 14,986.06 is: 20,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.01 : 28,471.23 = 14,986.06 : x
  2. Step 2: Convert to fraction form
    20,668.01/28,471.23 = 14,986.06/x
  3. Step 3: Cross multiply
    20,668.01x = 28,471.23 × 14,986.06
  4. Step 4: Simplify right side
    20,668.01x = 426,671,489.88
  5. Step 5: Solve for x
    x = 426,671,489.88/20,668.01
  6. Step 6: Final answer
    x = 20,644.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.