Home / 20,060.68-27,668.82-12,981.64

Finding the Fourth Proportional to 20,060.68, 27,668.82 and 12,981.64

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Solution

The fourth proportional to 20,060.68, 27,668.82 and 12,981.64 is: 17,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.68 : 27,668.82 = 12,981.64 : x
  2. Step 2: Convert to fraction form
    20,060.68/27,668.82 = 12,981.64/x
  3. Step 3: Cross multiply
    20,060.68x = 27,668.82 × 12,981.64
  4. Step 4: Simplify right side
    20,060.68x = 359,186,660.46
  5. Step 5: Solve for x
    x = 359,186,660.46/20,060.68
  6. Step 6: Final answer
    x = 17,905.01

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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.