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Finding the Fourth Proportional to 35,885.71, 49,520.17 and 20,777.30

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Solution

The fourth proportional to 35,885.71, 49,520.17 and 20,777.30 is: 28,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,885.71 : 49,520.17 = 20,777.30 : x
  2. Step 2: Convert to fraction form
    35,885.71/49,520.17 = 20,777.30/x
  3. Step 3: Cross multiply
    35,885.71x = 49,520.17 × 20,777.30
  4. Step 4: Simplify right side
    35,885.71x = 1,028,895,351.79
  5. Step 5: Solve for x
    x = 1,028,895,351.79/35,885.71
  6. Step 6: Final answer
    x = 28,671.45

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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.