Home / 20,064.20-27,668.30-12,101.72

Finding the Fourth Proportional to 20,064.20, 27,668.30 and 12,101.72

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Solution

The fourth proportional to 20,064.20, 27,668.30 and 12,101.72 is: 16,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.20 : 27,668.30 = 12,101.72 : x
  2. Step 2: Convert to fraction form
    20,064.20/27,668.30 = 12,101.72/x
  3. Step 3: Cross multiply
    20,064.20x = 27,668.30 × 12,101.72
  4. Step 4: Simplify right side
    20,064.20x = 334,834,019.48
  5. Step 5: Solve for x
    x = 334,834,019.48/20,064.20
  6. Step 6: Final answer
    x = 16,688.13

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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.