Home / 20,393.84-28,164.89-14,036.85

Finding the Fourth Proportional to 20,393.84, 28,164.89 and 14,036.85

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Solution

The fourth proportional to 20,393.84, 28,164.89 and 14,036.85 is: 19,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.84 : 28,164.89 = 14,036.85 : x
  2. Step 2: Convert to fraction form
    20,393.84/28,164.89 = 14,036.85/x
  3. Step 3: Cross multiply
    20,393.84x = 28,164.89 × 14,036.85
  4. Step 4: Simplify right side
    20,393.84x = 395,346,371.29
  5. Step 5: Solve for x
    x = 395,346,371.29/20,393.84
  6. Step 6: Final answer
    x = 19,385.58

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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.