Home / 42,319.26-63,476.37-18,939.42

Finding the Fourth Proportional to 42,319.26, 63,476.37 and 18,939.42

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Solution

The fourth proportional to 42,319.26, 63,476.37 and 18,939.42 is: 28,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,319.26 : 63,476.37 = 18,939.42 : x
  2. Step 2: Convert to fraction form
    42,319.26/63,476.37 = 18,939.42/x
  3. Step 3: Cross multiply
    42,319.26x = 63,476.37 × 18,939.42
  4. Step 4: Simplify right side
    42,319.26x = 1,202,205,631.51
  5. Step 5: Solve for x
    x = 1,202,205,631.51/42,319.26
  6. Step 6: Final answer
    x = 28,408.00

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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.