Home / 20,079.99-27,723.39-12,913.14

Finding the Fourth Proportional to 20,079.99, 27,723.39 and 12,913.14

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Solution

The fourth proportional to 20,079.99, 27,723.39 and 12,913.14 is: 17,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.99 : 27,723.39 = 12,913.14 : x
  2. Step 2: Convert to fraction form
    20,079.99/27,723.39 = 12,913.14/x
  3. Step 3: Cross multiply
    20,079.99x = 27,723.39 × 12,913.14
  4. Step 4: Simplify right side
    20,079.99x = 357,996,016.34
  5. Step 5: Solve for x
    x = 357,996,016.34/20,079.99
  6. Step 6: Final answer
    x = 17,828.50

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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.