Home / 37,486.45-51,731.49-20,490.42

Finding the Fourth Proportional to 37,486.45, 51,731.49 and 20,490.42

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Solution

The fourth proportional to 37,486.45, 51,731.49 and 20,490.42 is: 28,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,486.45 : 51,731.49 = 20,490.42 : x
  2. Step 2: Convert to fraction form
    37,486.45/51,731.49 = 20,490.42/x
  3. Step 3: Cross multiply
    37,486.45x = 51,731.49 × 20,490.42
  4. Step 4: Simplify right side
    37,486.45x = 1,059,999,957.33
  5. Step 5: Solve for x
    x = 1,059,999,957.33/37,486.45
  6. Step 6: Final answer
    x = 28,276.88

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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.