Home / 33,245.89-45,873.05-19,818.40

Finding the Fourth Proportional to 33,245.89, 45,873.05 and 19,818.40

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Solution

The fourth proportional to 33,245.89, 45,873.05 and 19,818.40 is: 27,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,245.89 : 45,873.05 = 19,818.40 : x
  2. Step 2: Convert to fraction form
    33,245.89/45,873.05 = 19,818.40/x
  3. Step 3: Cross multiply
    33,245.89x = 45,873.05 × 19,818.40
  4. Step 4: Simplify right side
    33,245.89x = 909,130,240.35
  5. Step 5: Solve for x
    x = 909,130,240.35/33,245.89
  6. Step 6: Final answer
    x = 27,345.65

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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.