Home / 33,342.37-45,990.79-21,386.77

Finding the Fourth Proportional to 33,342.37, 45,990.79 and 21,386.77

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Solution

The fourth proportional to 33,342.37, 45,990.79 and 21,386.77 is: 29,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,342.37 : 45,990.79 = 21,386.77 : x
  2. Step 2: Convert to fraction form
    33,342.37/45,990.79 = 21,386.77/x
  3. Step 3: Cross multiply
    33,342.37x = 45,990.79 × 21,386.77
  4. Step 4: Simplify right side
    33,342.37x = 983,594,447.85
  5. Step 5: Solve for x
    x = 983,594,447.85/33,342.37
  6. Step 6: Final answer
    x = 29,499.84

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1.5x scale

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.