Home / 20,498.44-28,303.46-20,171.60

Finding the Fourth Proportional to 20,498.44, 28,303.46 and 20,171.60

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Solution

The fourth proportional to 20,498.44, 28,303.46 and 20,171.60 is: 27,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.44 : 28,303.46 = 20,171.60 : x
  2. Step 2: Convert to fraction form
    20,498.44/28,303.46 = 20,171.60/x
  3. Step 3: Cross multiply
    20,498.44x = 28,303.46 × 20,171.60
  4. Step 4: Simplify right side
    20,498.44x = 570,926,073.74
  5. Step 5: Solve for x
    x = 570,926,073.74/20,498.44
  6. Step 6: Final answer
    x = 27,852.17

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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.