Home / 42,965.53-64,422.41-19,268.79

Finding the Fourth Proportional to 42,965.53, 64,422.41 and 19,268.79

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Solution

The fourth proportional to 42,965.53, 64,422.41 and 19,268.79 is: 28,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.53 : 64,422.41 = 19,268.79 : x
  2. Step 2: Convert to fraction form
    42,965.53/64,422.41 = 19,268.79/x
  3. Step 3: Cross multiply
    42,965.53x = 64,422.41 × 19,268.79
  4. Step 4: Simplify right side
    42,965.53x = 1,241,341,471.13
  5. Step 5: Solve for x
    x = 1,241,341,471.13/42,965.53
  6. Step 6: Final answer
    x = 28,891.57

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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.