Home / 33,219.70-45,840.88-18,686.06

Finding the Fourth Proportional to 33,219.70, 45,840.88 and 18,686.06

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Solution

The fourth proportional to 33,219.70, 45,840.88 and 18,686.06 is: 25,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219.70 : 45,840.88 = 18,686.06 : x
  2. Step 2: Convert to fraction form
    33,219.70/45,840.88 = 18,686.06/x
  3. Step 3: Cross multiply
    33,219.70x = 45,840.88 × 18,686.06
  4. Step 4: Simplify right side
    33,219.70x = 856,585,434.13
  5. Step 5: Solve for x
    x = 856,585,434.13/33,219.70
  6. Step 6: Final answer
    x = 25,785.47

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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.