Home / 33,220.40-45,842.50-18,878.36

Finding the Fourth Proportional to 33,220.40, 45,842.50 and 18,878.36

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Solution

The fourth proportional to 33,220.40, 45,842.50 and 18,878.36 is: 26,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.40 : 45,842.50 = 18,878.36 : x
  2. Step 2: Convert to fraction form
    33,220.40/45,842.50 = 18,878.36/x
  3. Step 3: Cross multiply
    33,220.40x = 45,842.50 × 18,878.36
  4. Step 4: Simplify right side
    33,220.40x = 865,431,218.30
  5. Step 5: Solve for x
    x = 865,431,218.30/33,220.40
  6. Step 6: Final answer
    x = 26,051.20

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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.