Home / 35,077.92-48,399.56-20,928

Finding the Fourth Proportional to 35,077.92, 48,399.56 and 20,928

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Solution

The fourth proportional to 35,077.92, 48,399.56 and 20,928 is: 28,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,077.92 : 48,399.56 = 20,928 : x
  2. Step 2: Convert to fraction form
    35,077.92/48,399.56 = 20,928/x
  3. Step 3: Cross multiply
    35,077.92x = 48,399.56 × 20,928
  4. Step 4: Simplify right side
    35,077.92x = 1,012,905,991.68
  5. Step 5: Solve for x
    x = 1,012,905,991.68/35,077.92
  6. Step 6: Final answer
    x = 28,875.89

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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.