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Finding the Fourth Proportional to 35,587.80, 49,108.40 and 20,481.30

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Solution

The fourth proportional to 35,587.80, 49,108.40 and 20,481.30 is: 28,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,587.80 : 49,108.40 = 20,481.30 : x
  2. Step 2: Convert to fraction form
    35,587.80/49,108.40 = 20,481.30/x
  3. Step 3: Cross multiply
    35,587.80x = 49,108.40 × 20,481.30
  4. Step 4: Simplify right side
    35,587.80x = 1,005,803,872.92
  5. Step 5: Solve for x
    x = 1,005,803,872.92/35,587.80
  6. Step 6: Final answer
    x = 28,262.60

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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.