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Finding the Fourth Proportional to 35,251.50, 48,647.07 and 20,347.50

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Solution

The fourth proportional to 35,251.50, 48,647.07 and 20,347.50 is: 28,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,251.50 : 48,647.07 = 20,347.50 : x
  2. Step 2: Convert to fraction form
    35,251.50/48,647.07 = 20,347.50/x
  3. Step 3: Cross multiply
    35,251.50x = 48,647.07 × 20,347.50
  4. Step 4: Simplify right side
    35,251.50x = 989,846,256.83
  5. Step 5: Solve for x
    x = 989,846,256.83/35,251.50
  6. Step 6: Final answer
    x = 28,079.55

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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.