Home / 30,916.94-42,665.38-17,487.90

Finding the Fourth Proportional to 30,916.94, 42,665.38 and 17,487.90

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Solution

The fourth proportional to 30,916.94, 42,665.38 and 17,487.90 is: 24,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.94 : 42,665.38 = 17,487.90 : x
  2. Step 2: Convert to fraction form
    30,916.94/42,665.38 = 17,487.90/x
  3. Step 3: Cross multiply
    30,916.94x = 42,665.38 × 17,487.90
  4. Step 4: Simplify right side
    30,916.94x = 746,127,918.13
  5. Step 5: Solve for x
    x = 746,127,918.13/30,916.94
  6. Step 6: Final answer
    x = 24,133.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.