Home / 33,298.16-45,961.80-20,555.36

Finding the Fourth Proportional to 33,298.16, 45,961.80 and 20,555.36

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Solution

The fourth proportional to 33,298.16, 45,961.80 and 20,555.36 is: 28,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,298.16 : 45,961.80 = 20,555.36 : x
  2. Step 2: Convert to fraction form
    33,298.16/45,961.80 = 20,555.36/x
  3. Step 3: Cross multiply
    33,298.16x = 45,961.80 × 20,555.36
  4. Step 4: Simplify right side
    33,298.16x = 944,761,345.25
  5. Step 5: Solve for x
    x = 944,761,345.25/33,298.16
  6. Step 6: Final answer
    x = 28,372.78

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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.