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Finding the Fourth Proportional to 35,361, 48,822.12 and 21,937.68

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Solution

The fourth proportional to 35,361, 48,822.12 and 21,937.68 is: 30,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,361 : 48,822.12 = 21,937.68 : x
  2. Step 2: Convert to fraction form
    35,361/48,822.12 = 21,937.68/x
  3. Step 3: Cross multiply
    35,361x = 48,822.12 × 21,937.68
  4. Step 4: Simplify right side
    35,361x = 1,071,044,045.48
  5. Step 5: Solve for x
    x = 1,071,044,045.48/35,361
  6. Step 6: Final answer
    x = 30,288.85

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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.