Home / 42,405.29-63,549.09-18,677.26

Finding the Fourth Proportional to 42,405.29, 63,549.09 and 18,677.26

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Solution

The fourth proportional to 42,405.29, 63,549.09 and 18,677.26 is: 27,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,405.29 : 63,549.09 = 18,677.26 : x
  2. Step 2: Convert to fraction form
    42,405.29/63,549.09 = 18,677.26/x
  3. Step 3: Cross multiply
    42,405.29x = 63,549.09 × 18,677.26
  4. Step 4: Simplify right side
    42,405.29x = 1,186,922,717.82
  5. Step 5: Solve for x
    x = 1,186,922,717.82/42,405.29
  6. Step 6: Final answer
    x = 27,989.97

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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.