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Finding the Fourth Proportional to 34,953.80, 48,232.60 and 20,803.88

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Solution

The fourth proportional to 34,953.80, 48,232.60 and 20,803.88 is: 28,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,953.80 : 48,232.60 = 20,803.88 : x
  2. Step 2: Convert to fraction form
    34,953.80/48,232.60 = 20,803.88/x
  3. Step 3: Cross multiply
    34,953.80x = 48,232.60 × 20,803.88
  4. Step 4: Simplify right side
    34,953.80x = 1,003,425,222.49
  5. Step 5: Solve for x
    x = 1,003,425,222.49/34,953.80
  6. Step 6: Final answer
    x = 28,707.19

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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.