Home / 33,120.98-45,706.86-18,585.20

Finding the Fourth Proportional to 33,120.98, 45,706.86 and 18,585.20

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Solution

The fourth proportional to 33,120.98, 45,706.86 and 18,585.20 is: 25,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.98 : 45,706.86 = 18,585.20 : x
  2. Step 2: Convert to fraction form
    33,120.98/45,706.86 = 18,585.20/x
  3. Step 3: Cross multiply
    33,120.98x = 45,706.86 × 18,585.20
  4. Step 4: Simplify right side
    33,120.98x = 849,471,134.47
  5. Step 5: Solve for x
    x = 849,471,134.47/33,120.98
  6. Step 6: Final answer
    x = 25,647.52

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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.