Home / 37,212.78-51,353.67-20,445.78

Finding the Fourth Proportional to 37,212.78, 51,353.67 and 20,445.78

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Solution

The fourth proportional to 37,212.78, 51,353.67 and 20,445.78 is: 28,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,212.78 : 51,353.67 = 20,445.78 : x
  2. Step 2: Convert to fraction form
    37,212.78/51,353.67 = 20,445.78/x
  3. Step 3: Cross multiply
    37,212.78x = 51,353.67 × 20,445.78
  4. Step 4: Simplify right side
    37,212.78x = 1,049,965,839.01
  5. Step 5: Solve for x
    x = 1,049,965,839.01/37,212.78
  6. Step 6: Final answer
    x = 28,215.19

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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.