Home / 42,784.68-64,185.58-13,201.41

Finding the Fourth Proportional to 42,784.68, 64,185.58 and 13,201.41

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Solution

The fourth proportional to 42,784.68, 64,185.58 and 13,201.41 is: 19,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,784.68 : 64,185.58 = 13,201.41 : x
  2. Step 2: Convert to fraction form
    42,784.68/64,185.58 = 13,201.41/x
  3. Step 3: Cross multiply
    42,784.68x = 64,185.58 × 13,201.41
  4. Step 4: Simplify right side
    42,784.68x = 847,339,933.47
  5. Step 5: Solve for x
    x = 847,339,933.47/42,784.68
  6. Step 6: Final answer
    x = 19,804.75

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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.