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Finding the Fourth Proportional to 35,387.44, 48,835.03 and 20,279.77

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Solution

The fourth proportional to 35,387.44, 48,835.03 and 20,279.77 is: 27,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.44 : 48,835.03 = 20,279.77 : x
  2. Step 2: Convert to fraction form
    35,387.44/48,835.03 = 20,279.77/x
  3. Step 3: Cross multiply
    35,387.44x = 48,835.03 × 20,279.77
  4. Step 4: Simplify right side
    35,387.44x = 990,363,176.34
  5. Step 5: Solve for x
    x = 990,363,176.34/35,387.44
  6. Step 6: Final answer
    x = 27,986.29

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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.