Home / 30,664.36-45,879.90-18,948.52

Finding the Fourth Proportional to 30,664.36, 45,879.90 and 18,948.52

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Solution

The fourth proportional to 30,664.36, 45,879.90 and 18,948.52 is: 28,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.36 : 45,879.90 = 18,948.52 : x
  2. Step 2: Convert to fraction form
    30,664.36/45,879.90 = 18,948.52/x
  3. Step 3: Cross multiply
    30,664.36x = 45,879.90 × 18,948.52
  4. Step 4: Simplify right side
    30,664.36x = 869,356,202.75
  5. Step 5: Solve for x
    x = 869,356,202.75/30,664.36
  6. Step 6: Final answer
    x = 28,350.70

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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.