Home / 42,010.56-62,996.40-18,643.68

Finding the Fourth Proportional to 42,010.56, 62,996.40 and 18,643.68

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Solution

The fourth proportional to 42,010.56, 62,996.40 and 18,643.68 is: 27,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,010.56 : 62,996.40 = 18,643.68 : x
  2. Step 2: Convert to fraction form
    42,010.56/62,996.40 = 18,643.68/x
  3. Step 3: Cross multiply
    42,010.56x = 62,996.40 × 18,643.68
  4. Step 4: Simplify right side
    42,010.56x = 1,174,484,722.75
  5. Step 5: Solve for x
    x = 1,174,484,722.75/42,010.56
  6. Step 6: Final answer
    x = 27,956.89

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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.