Home / 42,446.09-63,638.64-19,944.08

Finding the Fourth Proportional to 42,446.09, 63,638.64 and 19,944.08

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Solution

The fourth proportional to 42,446.09, 63,638.64 and 19,944.08 is: 29,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,446.09 : 63,638.64 = 19,944.08 : x
  2. Step 2: Convert to fraction form
    42,446.09/63,638.64 = 19,944.08/x
  3. Step 3: Cross multiply
    42,446.09x = 63,638.64 × 19,944.08
  4. Step 4: Simplify right side
    42,446.09x = 1,269,214,127.25
  5. Step 5: Solve for x
    x = 1,269,214,127.25/42,446.09
  6. Step 6: Final answer
    x = 29,901.79

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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.