Home / 20,085.32-27,687.02-14,100.20

Finding the Fourth Proportional to 20,085.32, 27,687.02 and 14,100.20

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Solution

The fourth proportional to 20,085.32, 27,687.02 and 14,100.20 is: 19,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.32 : 27,687.02 = 14,100.20 : x
  2. Step 2: Convert to fraction form
    20,085.32/27,687.02 = 14,100.20/x
  3. Step 3: Cross multiply
    20,085.32x = 27,687.02 × 14,100.20
  4. Step 4: Simplify right side
    20,085.32x = 390,392,519.40
  5. Step 5: Solve for x
    x = 390,392,519.40/20,085.32
  6. Step 6: Final answer
    x = 19,436.71

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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.