Home / 33,228.86-45,856.67-20,490.44

Finding the Fourth Proportional to 33,228.86, 45,856.67 and 20,490.44

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Solution

The fourth proportional to 33,228.86, 45,856.67 and 20,490.44 is: 28,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,228.86 : 45,856.67 = 20,490.44 : x
  2. Step 2: Convert to fraction form
    33,228.86/45,856.67 = 20,490.44/x
  3. Step 3: Cross multiply
    33,228.86x = 45,856.67 × 20,490.44
  4. Step 4: Simplify right side
    33,228.86x = 939,623,013.50
  5. Step 5: Solve for x
    x = 939,623,013.50/33,228.86
  6. Step 6: Final answer
    x = 28,277.32

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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.