Home / 35,355.45-53,029.53-11,981.28

Finding the Fourth Proportional to 35,355.45, 53,029.53 and 11,981.28

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Solution

The fourth proportional to 35,355.45, 53,029.53 and 11,981.28 is: 17,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,355.45 : 53,029.53 = 11,981.28 : x
  2. Step 2: Convert to fraction form
    35,355.45/53,029.53 = 11,981.28/x
  3. Step 3: Cross multiply
    35,355.45x = 53,029.53 × 11,981.28
  4. Step 4: Simplify right side
    35,355.45x = 635,361,647.20
  5. Step 5: Solve for x
    x = 635,361,647.20/35,355.45
  6. Step 6: Final answer
    x = 17,970.68

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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.