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Finding the Fourth Proportional to 37,587.63, 51,871.03 and 20,820.63

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Solution

The fourth proportional to 37,587.63, 51,871.03 and 20,820.63 is: 28,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,587.63 : 51,871.03 = 20,820.63 : x
  2. Step 2: Convert to fraction form
    37,587.63/51,871.03 = 20,820.63/x
  3. Step 3: Cross multiply
    37,587.63x = 51,871.03 × 20,820.63
  4. Step 4: Simplify right side
    37,587.63x = 1,079,987,523.35
  5. Step 5: Solve for x
    x = 1,079,987,523.35/37,587.63
  6. Step 6: Final answer
    x = 28,732.53

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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.