Home / 20,505.22-30,746.89-10,619.98

Finding the Fourth Proportional to 20,505.22, 30,746.89 and 10,619.98

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Solution

The fourth proportional to 20,505.22, 30,746.89 and 10,619.98 is: 15,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.22 : 30,746.89 = 10,619.98 : x
  2. Step 2: Convert to fraction form
    20,505.22/30,746.89 = 10,619.98/x
  3. Step 3: Cross multiply
    20,505.22x = 30,746.89 × 10,619.98
  4. Step 4: Simplify right side
    20,505.22x = 326,531,356.86
  5. Step 5: Solve for x
    x = 326,531,356.86/20,505.22
  6. Step 6: Final answer
    x = 15,924.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.