Home / 48,020.09-72,039.34-18,435.58

Finding the Fourth Proportional to 48,020.09, 72,039.34 and 18,435.58

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Solution

The fourth proportional to 48,020.09, 72,039.34 and 18,435.58 is: 27,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,020.09 : 72,039.34 = 18,435.58 : x
  2. Step 2: Convert to fraction form
    48,020.09/72,039.34 = 18,435.58/x
  3. Step 3: Cross multiply
    48,020.09x = 72,039.34 × 18,435.58
  4. Step 4: Simplify right side
    48,020.09x = 1,328,086,858.66
  5. Step 5: Solve for x
    x = 1,328,086,858.66/48,020.09
  6. Step 6: Final answer
    x = 27,656.90

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1.5x scale

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.