Home / 42,262.40-63,379.01-12,268.51

Finding the Fourth Proportional to 42,262.40, 63,379.01 and 12,268.51

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Solution

The fourth proportional to 42,262.40, 63,379.01 and 12,268.51 is: 18,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,262.40 : 63,379.01 = 12,268.51 : x
  2. Step 2: Convert to fraction form
    42,262.40/63,379.01 = 12,268.51/x
  3. Step 3: Cross multiply
    42,262.40x = 63,379.01 × 12,268.51
  4. Step 4: Simplify right side
    42,262.40x = 777,565,718.96
  5. Step 5: Solve for x
    x = 777,565,718.96/42,262.40
  6. Step 6: Final answer
    x = 18,398.52

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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.