Home / 42,853.19-64,290.04-17,879.37

Finding the Fourth Proportional to 42,853.19, 64,290.04 and 17,879.37

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Solution

The fourth proportional to 42,853.19, 64,290.04 and 17,879.37 is: 26,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,853.19 : 64,290.04 = 17,879.37 : x
  2. Step 2: Convert to fraction form
    42,853.19/64,290.04 = 17,879.37/x
  3. Step 3: Cross multiply
    42,853.19x = 64,290.04 × 17,879.37
  4. Step 4: Simplify right side
    42,853.19x = 1,149,465,126.69
  5. Step 5: Solve for x
    x = 1,149,465,126.69/42,853.19
  6. Step 6: Final answer
    x = 26,823.33

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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.