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Finding the Fourth Proportional to 35,248, 48,642.32 and 21,102.88

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Solution

The fourth proportional to 35,248, 48,642.32 and 21,102.88 is: 29,122.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,248 : 48,642.32 = 21,102.88 : x
  2. Step 2: Convert to fraction form
    35,248/48,642.32 = 21,102.88/x
  3. Step 3: Cross multiply
    35,248x = 48,642.32 × 21,102.88
  4. Step 4: Simplify right side
    35,248x = 1,026,493,041.88
  5. Step 5: Solve for x
    x = 1,026,493,041.88/35,248
  6. Step 6: Final answer
    x = 29,122.02

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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.