Home / 35,235.20-48,624.95-20,129.87

Finding the Fourth Proportional to 35,235.20, 48,624.95 and 20,129.87

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Solution

The fourth proportional to 35,235.20, 48,624.95 and 20,129.87 is: 27,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,235.20 : 48,624.95 = 20,129.87 : x
  2. Step 2: Convert to fraction form
    35,235.20/48,624.95 = 20,129.87/x
  3. Step 3: Cross multiply
    35,235.20x = 48,624.95 × 20,129.87
  4. Step 4: Simplify right side
    35,235.20x = 978,813,578.48
  5. Step 5: Solve for x
    x = 978,813,578.48/35,235.20
  6. Step 6: Final answer
    x = 27,779.43

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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.