Home / 20,079.32-27,719.10-14,116.10

Finding the Fourth Proportional to 20,079.32, 27,719.10 and 14,116.10

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Solution

The fourth proportional to 20,079.32, 27,719.10 and 14,116.10 is: 19,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.32 : 27,719.10 = 14,116.10 : x
  2. Step 2: Convert to fraction form
    20,079.32/27,719.10 = 14,116.10/x
  3. Step 3: Cross multiply
    20,079.32x = 27,719.10 × 14,116.10
  4. Step 4: Simplify right side
    20,079.32x = 391,285,448.91
  5. Step 5: Solve for x
    x = 391,285,448.91/20,079.32
  6. Step 6: Final answer
    x = 19,486.99

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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.