Home / 42,998.50-64,481.19-16,699.78

Finding the Fourth Proportional to 42,998.50, 64,481.19 and 16,699.78

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Solution

The fourth proportional to 42,998.50, 64,481.19 and 16,699.78 is: 25,043.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,998.50 : 64,481.19 = 16,699.78 : x
  2. Step 2: Convert to fraction form
    42,998.50/64,481.19 = 16,699.78/x
  3. Step 3: Cross multiply
    42,998.50x = 64,481.19 × 16,699.78
  4. Step 4: Simplify right side
    42,998.50x = 1,076,821,687.14
  5. Step 5: Solve for x
    x = 1,076,821,687.14/42,998.50
  6. Step 6: Final answer
    x = 25,043.24

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1.5x scale

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.